The plains zebra (Equus quagga, formerly Equus burchellii), also known as the common zebra, is the most common and geographically widespread species of zebra. Its range is fragmented, but spans much of southern and eastern Africa south of the Sahara. Six or seven subspecies have been recognised, including the extinct quagga which was thought to be a separate species. More recent research supports variations in zebra populations being clines rather than subspecies.
The plains zebra is intermediate in size between the larger Grévy's zebra and the smaller mountain zebra and tends to have broader stripes than both. Great variation in coat patterns exists between clines and individuals. The plain zebra's habitat is generally, but not exclusively, treeless grasslands and savanna woodlands, both tropical and temperate. They generally avoid desert, dense rainforest and permanent wetlands. Zebras are preyed upon by lions and spotted hyenas, Nile crocodiles and, to a lesser extent, leopards, cheetahs and African wild dogs.
The plains zebra is a highly social species, forming harems with a single stallion, several mares and their recent offspring; bachelor groups also form. Groups may come together to form herds. The animals keep watch for predators; they bark or snort when they see a predator and the harem stallion attacks predators to defend his harem.
The plains zebra remains common in game reserves, but is threatened by human activities such as hunting for its meat and hide, as well as competition with livestock and encroachment by farming on much of its habitat. The species population is stable and not endangered, though populations in most countries have declined sharply. As of 2016, the plains zebra is classified as near threatened by IUCN.


The stallion mates with all his mares. Males exhibit the flehmen response to test for female receptivity, which involves the upper lip curling back to smell for urine (via the vomeronasal organ). The female signals her readiness for copulation by straddling her legs and raising her tail. The gestation period lasts around a year, and a single young is produced. Mares may give birth to one foal every twelve months. The birthing peak is during the rainy season. A mare gives birth within the vicinity of her group and while lying down on her side. The newborn foal weighs 30–35 kg (66–77 lb) and the afterbirth is rarely consumed.
A newborn is capable of standing almost immediately and starts to eat grass within a week. Early on, a mother zebra keeps any other zebra away from her foal, including the stallion, the other mares, and even her previous offspring. Later, though, they all bond. Within the group, a foal has the same rank as its mother. The stallion is generally intolerant of foals that are not his, and zebras may practice infanticide and feticide.
Mortality for foals is high in their first year of life and is usually caused by predation. However, zebra young are afforded more protection than those of species like wildebeest and hartebeest. A foal is usually weaned at around eleven months, but may suckle for longer. Females reach puberty before three years, and males after five or six. Young male zebras eventually leave their family groups as the relationship with their mothers fades after the birth of a sibling. The young stallion then seeks out other young stallions for company. Young females may stay in the harem until they are abducted by another stallion.


The African common toad or guttural toad (Sclerophrys gutturalis) is a species of toad in the family Bufonidae.
It is found in Angola, Botswana, Democratic Republic of the Congo, Kenya, Lesotho, Malawi, Mauritius, Mozambique, Namibia, Réunion, Somalia, South Africa, Ethiopia, Eswatini, Tanzania, Zambia, and Zimbabwe.
Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, dry savanna, moist savanna, temperate shrubland, subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, subtropical or tropical dry lowland grassland, subtropical or tropical seasonally wet or flooded lowland grassland, subtropical or tropical high-altitude grassland, intermittent rivers, freshwater lakes, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, arable land, pastureland, rural gardens, urban areas, heavily degraded former forest, ponds, and canals and ditches.


The guttural toad is a large species with males growing to a snout-to-vent length of up to 90 mm (3.5 in) and females 120 mm (4.7 in). The upper surface is buffish brown with variable irregular dark brown markings. There are two pairs of brown spots between the eyes making a cross-like mark, and there is often a pale stripe down the spine. The arms are edged by distinctive white tubercles and there is a red patch on the back of the thighs. The underparts are pale and granular and the male has a dark throat. The parotid glands are prominent and the toes are only slightly webbed.


The veined tree frog (Trachycephalus typhonius), or common milk frog, is a species of frog in the family Hylidae. This species was previously within the genus Phrynohyas, which was recently synonymized with Trachycephalus .
It is found in Central and South America.
Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, subtropical or tropical moist shrubland, subtropical or tropical dry lowland grassland, rivers, intermittent rivers, freshwater lakes, freshwater marshes, intermittent freshwater marshes, arable land, pastureland, plantations, rural gardens, urban areas, heavily degraded former forest, water storage areas, and ponds. The veined tree frog is nocturnal, and can typically be found in tree branches and in areas with large amounts of vegetation. This frog is one of several other tree frogs in the family Hylidae that secrete a toxic substance from their skin that produces extreme irritation and pain when in contact with mucosal membrane surfaces.
The veined tree frog is predated among other animals by mantis.


The bonnet macaque (Macaca radiata), also known as zati, is a species of macaque endemic to southern India. Its distribution is limited by the Indian Ocean on three sides and the Godavari and Tapti Rivers, along with its related competitor the rhesus macaque in the north. Land use changes in the last few decades have resulted in changes in its distribution boundaries with the rhesus macaque, raising concern for its status in the wild.
The bonnet macaque is diurnal, arboreal, and terrestrial. Males have a head-body length of 51.5–60 cm (20.3–23.6 in) with a 51–69 cm (20–27 in) tail while females are 34.5–52.5 cm (13.6–20.7 in) with a 48–63.5 cm (18.9–25.0 in) tail. Males weigh 5.4–11.6 kg (12–26 lb) and females 2.9–5.5 kg (6.4–12.1 lb). It can live up to 35 years in captivity.
The bonnet macaque feeds on fruits, nuts, seeds, flowers, invertebrates, and cereals. In southern India, this macaque exists as commensal to humans, feeding on food given by humans and raiding crops and houses.


The bonnet macaque has a very wide range of gestures and behaviors, which can be easily differentiated. Lip-smacking is one of the most common affiliative behaviors, where one individual may open and close its mouth in rapid succession, with its tongue between its teeth and its lips pressing against each other, giving an audible sound. A grimace is the most common gesture of fear or submission that a subordinate shows to a dominant individual during aggressive encounters. It consists of pulling back its upper lip, showing its upper teeth. It also has distinct alarm calls for predators such as pythons and leopards.


The white-tailed antelope squirrel is commonly spotted in arid habitats throughout the southwestern United States. Throughout this range, Ammospermophilus leucurus is omnivorous, feeding primarily on foliage (10%-60% of its diet), seeds (20%-50%), arthropods, and to a lesser extent, vertebrates (mainly lizards and rodents; predatory behavior by ground squirrels has been noted).  In conjunction with being a predator, the white-tailed antelope squirrel is also prey to many larger animals, including raptors, various canids, and snakes. These squirrels are not only preyed upon by large predators, but they also fall victim to many diverse ectoparasites. These include various ticks, fleas, mites, lice, and a couple species of parasitic larvae.


The white-tailed antelope squirrel (Ammospermophilus leucurus) is a diurnal species of ground squirrel, scientifically classified in the order Rodentia and family Sciuridae, found in arid regions of the southwestern United States and the Baja California Peninsula of northwestern Mexico.


Geographical factors, and thus environmental factors, weigh heavily on Ammospermophilus leucurus' reproductive cycle length and average litter size. Specifically, this variation is seen best when comparing the northern and southern extents of the antelope ground squirrels' distribution. In Oregon, which is the northernmost extent of the squirrels' range, reproductive cycles are relatively short, and the average litter size is 9.3. However, in Baja California, the southernmost extent of the squirrels' range, reproductive cycles last half of the year, and the average litter size is 5.9.


The plantain squirrel, oriental squirrel or tricoloured squirrel (Callosciurus notatus) is a species of rodent in the family Sciuridae found in Indonesia, Malaysia, Singapore, and Thailand in a wide range of habitats: forests, mangroves, parks, gardens, and agricultural areas. Fruit farmers consider them to be pests.
Its body is about 20–30 cm (8–12 in) long with a similar-sized tail. It is greyish/brown with a chestnut belly and a black and white stripe on the side. The genus name Callosciurus means beautiful squirrels.
Its diet consists mostly of leaves and fruits, but it also eats insects and bird eggs. It is known to break open twigs that contain ant larvae to eat them. It can eat fruits much bigger than itself, such as mangoes, jackfruit, or coconuts. It is very quick and agile in trees,  able to jump a few metres between trees, and rarely wanders on the ground.
Kloss's squirrel (Callosciurus albescens) is sometimes considered a subspecies.


The chacma baboon inhabits a wide array of habitats including woodland, savanna, steppes, and sub desert, from the grassy alpine slopes of the Drakensberg to the Kalahari desert. During the night, the chacma baboon sleeps atop steep hills, high cliffs or rocks or in large trees, away from nocturnal predators. In daytime, water availability may limit its range in arid areas. It is found throughout southern Africa, ranging from South Africa north to Angola, Zambia, and Mozambique. The subspecies are divided across this range. The Cape chacma is found in southern South Africa; the gray-footed chacma, is present from northern South Africa, through the Okavango Delta in Botswana, Zimbabwe, Mozambique (south of the Zambezi), to southwest Zambia; and the Ruacana chacma is found in northern Namibia and southern Angola.


The chacma baboon is an omnivorous highly opportunistic feeder, and will eat practically anything; typical foods include fruits, seeds, grass, blossoms, bulbs, bark, insects, spiders, worms, grubs, rodents, birds, small antelope and fungi (the desert truffle Kalaharituber pfeilii). Chacma baboon diet is thought to contain about 2 percent animal-sourced food, most of which consists of invertebrates; proportions vary between populations. Baboons are considered vermin by most African farmers due to their foraging of cultivated crops and livestock. At the Cape of Good Hope in particular, chacma baboons are also known for taking shellfish and other small marine invertebrates. It is generally a scavenger when it comes to game meat, and rarely engages in hunting larger animals. One incident of a chacma baboon killing a human infant has been reported, but the event is so rare, the locals believed it was due to witchcraft. Normally, wild chacma baboons will flee at the approach of humans, though this is changing due to the easy availability of food and garbage from human dwellings in villages and towns near the baboons habitat.


Despite their formidable nature and large size, chacma baboons are vulnerable to a variety of predators. Undoubtedly the main predator of adult chacma baboons overall is the leopard. In the Waterberg Biosphere, chacma baboon comprised 20.2% of leopard kills and 18.7% of the leopard's prey biomass. Although previously little documented, the African wild dog, a predator of similar or even slightly inferior size to male baboons themselves, in Mana Pools National Park (Zimbabwe) took to chacma baboons as their main prey, comprising 44% of 118 kills. Less routine predation on chacma baboons has been reportedly committed by lions, spotted hyena, Nile crocodiles and African rock pythons (in rough descending likelihood of threat). The predators of infant and juvenile chacma baboons are probably even more diverse but poorly-documented. It is documented that Verreaux's eagles and martial eagles have taken young chacma baboons and probable or possible predation has been committed by other eagles: crowned eagles and tawny eagles. When approaching potentially dangerous sites such as watering holes, more vulnerable members of the chacma baboon group may travel near the rear of the group but may conversely end up by the front of group out of fear if a predator approaches. The adult male chacma baboon has a fearsome defense and may assault their predators with their large, sharp canine teeth, which can at least seriously injure predators as formidable as leopards, and (despite being far from exempt from predation) the adult males tend to be the least vulnerable members of the baboon troops. As in other monkeys, the larger, more formidable male baboons may successfully defend more vulnerable members of the troop via attacking predators if they come into sight.


The beech marten (Martes foina), also known as the stone marten, house marten or white breasted marten, is a species of marten native to much of Europe and Central Asia, though it has established a feral population in North America. It is listed as Least Concern on the IUCN Red List on account of its wide distribution, its large population, and its presence in a number of protected areas. It is superficially similar to the European pine marten, but differs from it by its smaller size and habitat preferences. While the pine marten is a forest specialist, the beech marten is a more generalist and adaptable species, occurring in a number of open and forest habitats.


The beech marten's diet includes a much higher quantity of plant food than that of the pine marten and sable. Plant foods eaten by the beech marten include cherries, apples, pears, plums, black nightshade, tomatoes, grapes, raspberries and mountain ash. Plant food typically predominates during the winter months. Rats, mice and chickens are also eaten. Among bird species preyed upon by the beech marten, sparrow-like birds predominate, though snowcocks and partridges may also be taken. The marten likes to plunder nests of birds including passerines, galliformes and small owls, preferring to kill the parents in addition to the fledglings. Although it rarely attacks poultry, some specimens may become specialized poultry raiders, even when wild prey is abundant. Males tend to target large, live prey more than females, who feed on small prey and carrion with greater frequency.


In areas where the beech marten is sympatric with the pine marten, the two species avoid competing with one another by assuming different ecological niches; the pine marten feeds on birds and rodents more frequently, while the beech marten feeds on fruits and insects. There is however one case of a subadult beech marten being killed by a pine marten. The beech marten has been known to kill European polecats on rare occasions. Red foxes, lynxes and mountain lions may prey on adults, and juveniles are vulnerable from attack by birds of prey and wildcats. There is, however one case, from Germany, of a beech marten killing a domestic cat.


Estrus and copulation occur at the same time as in the pine marten. Copulation can last longer than 1 hour. Mating occurs in the June–July period, and takes place in the morning or in moonlit nights on the ground or on the roofs of houses. The gestation period lasts as long as the pine marten's, lasting 236–237 days in the wild, and 254–275 days in fur farms. Parturition takes place in late March-early April, with the average litter consisting of 3-7 kits. The kits are born blind, and begin to see at the age of 30–36 days. The lactation period lasts 40–45 days. In early July, the young are indistinguishable from the adults.


As its name suggests, the alpine marmot ranges throughout the European Alps, ranging through alpine areas of France, Italy, Switzerland, Germany, Slovenia, Slovakia and Austria. They have also been introduced elsewhere with sub-populations in the Pyrenees, France's Massif Central, Jura, Vosges, Black Forest, Apennine Mountains, and the Romanian Carpathians. The Tatra marmot (Marmota marmota latirostris Kratochvíl, 1961) represents an endemic subspecies of Alpine marmot that originated during the Quaternary period. Tatra marmots inhabit Tatry Mountains and Nízke Tatry Mountains.
Marmots are abundant in their core population; in the Romanian Carpathians, for example, the population is estimated at 1,500 individuals. Alpine marmots prefer alpine meadows and high-altitude pastures, where colonies live in deep burrow systems situated in alluvial soil or rocky areas.
Marmots may be seen "sun bathing", but actually this is often on a flat rock and it is believed they are actually cooling and possibly this is a strategy to deal with parasites. Marmots are temperature sensitive and an increase in temperature can cause habitat loss for the species as a whole.


Alpine marmots eat plants such as grasses and herbs, as well as grain, insects, spiders and worms. They prefer young and tender plants over any other kind, and hold food in their forepaws while eating. They mainly emerge from their burrows to engage in feeding during the morning and afternoon, as they are not well suited to heat, which may result in them not feeding at all on very warm days. When the weather is suitable, they will consume large amounts of food in order to create a layer of fat on their body, enabling them to survive their long hibernation period.


The alpine marmot (Marmota marmota) is a large ground-dwelling squirrel, from the genus of marmots. It is found in high numbers in mountainous areas of central and southern Europe, at heights between 800 and 3,200 m (2,600–10,500 ft) in the Alps, Carpathians, Tatras and Northern Apennines. In 1948 they were reintroduced with success in the Pyrenees, where the alpine marmot had disappeared at end of the Pleistocene epoch.


When creating a burrow, they use both their forepaws and hind feet to assist in the work—the forepaws scrape away the soil, which is then pushed out of the way by the hind feet. If there are any stones in the way, the alpine marmot will remove them with its teeth provided that the stones aren't too large. "Living areas" are created at the end of a burrow, and are often lined with dried hay, grass and plant stems. Any other burrow tunnels that go nowhere are used as toilet areas. Once burrows have been completed, they only host one family, but are often enlarged by the next generation, sometimes creating very complex burrows over time. Each alpine marmot will live in a group that consists of several burrows, and which has a dominant breeding pair. Alpine marmots are very defensive against intruders, and will warn them off using intimidating behavior, such as beating of the tail and chattering of the teeth, and by marking their territory with their scent. One can often see an alpine marmot "standing" while they keep a look-out for potential predators or other dangers. Warnings are given, by emitting a series of loud whistles, after which members of the colony may be seen running for cover.
The mating season for alpine marmots occurs in the spring, right after their hibernation period comes to a close, which gives their offspring the highest possible chance of storing enough fat to survive the coming winter. Alpine marmots are able to breed once they reach an age of two years. Dominant females tend to suppress reproduction of subordinates by being antagonistic towards them while they are pregnant which causes stress and kills the young. Once the female is pregnant, she will take bedding materials (such as grass) into the burrow for when she gives birth after a gestation period of 33–34 days. Each litter consists of between one and seven babies, though this number is usually three. The babies are born blind and will grow dark fur within several days. The weaning period takes a further forty days, during which time the mother will leave the young in the burrow while she searches for food. After this period, the offspring will come out of the burrow and search for solid food themselves. Their fur becomes the same colour as adult alpine marmots by the end of the summer, and after two years they will have reached their full size. If kept in captivity, alpine marmots can live up to 15–18 years.


The Columbia spotted frog (Rana luteiventris) is a North American species of frog. It is green to brown in color with spots on the dorsal surface. The belly and upper lip are white in color.  Individuals can be distinguished from other Rana species by their shorter back legs, narrow snout, and upturned eyes. Since they spend most of their time in the water, they also have more webbing in their hind feet than similar species. Although not threatened, this animal has been studied as a model species for the effects of habitat fragmentation.


The Columbia spotted frog, like most other frogs, is fairly aquatic. Their habitats are found generally near permanent bodies of water, which can include lakes, ponds, slow-moving streams, and marshes. These frogs were found to need specific habitat characteristics within these broader habitat characteristics. Adult spotted frogs inhabit mostly seasonally flooded sites, where the water source is constant, but at certain times of the year, increases exponentially in both the amount and level of water available.


The Columbia spotted frog is a medium-sized frog reaching lengths of up to 3.5 in (90 mm). Its color ranges from a dark, olive green to light brown with irregularly shaped black spots on its back and legs (rendering its name). Its skin texture, like the rest of the genus, varies from a rough to a smooth texture, with small folds of skin along the back. This frog exhibits a unique feature regarding its color. A light-colored strip runs along the upper lip, and the ventral sides of the frog are usually colored either pink or yellow, but only in the adult form.
This frog is well known by a few of its physical characteristics, as well. It has a long, narrow out and upturned eyes. The spotted frog is known as a very aquatic amphibian; the webbing on its feet extends all the way to the end of its longest toe. When comparing this frog to others of the same size, such as the northern leopard frog, it tends to have shorter hind legs.
The tadpoles are brownish-green in color, which runs dorsally along the tadpole. Gold spots are also intermittent throughout this coloring. The tadpoles have upturned, inset eyes. They usually reach around 3.1 inches (80 mm) in length before maturing to adults.


The Columbia spotted frog's breeding schedule depends heavily on geographical location and elevation. In British Columbia, the frog will breed during February at sea level. In areas around Utah, the frog will breed around mid-March at an elevation of about 1,395 m (4,577 ft). At areas of Wyoming, the frog will reproduce from May through June at elevations around 2,377 m (7,799 ft). The female will breed yearly at lower elevations and about every two to three years at higher elevations.


Once the oviposition site is created, the female then begins to lay her eggs in shallow water, and the male fertilizes the eggs. The egg masses, fairly large in size, range up to 1300 eggs. The egg masses, once laid, absorb water and become the size of a softball. These eggs are not attached to any type of vegetation, but are left free-floating in a permanent water source. Soon after, the eggs hatch into tadpoles.


American badgers prefer grasslands and open areas with grasslands, which can include parklands, farms, and treeless areas with friable soil and a supply of rodent prey. They may also be found in forest glades and meadows, marshes, brushy areas, hot deserts, and mountain meadows. They are sometimes found at elevations up to 12,000 feet (3,700 m) but are usually found in the Sonoran and Transition life zones (which are at elevations lower and warmer than those characterized by coniferous forests). In Arizona, they occur in desert scrub and semi-arid grasslands. In California, American badgers are primarily able to survive through a combination of open grasslands of agricultural lands, protected land trust and open space lands, and regional and state and national park lands with grassland habitat. Badgers are occasionally found in open chaparral (with less than 50% plant cover) and riparian zones. They are not usually found in mature chaparral. In Manitoba aspen parklands, American badger abundance was positively associated with the abundance of Richardson's ground squirrels (Spermophilus richardsonii).
In Ontario it primarily resides on the extreme southwestern portion of the province, restricted to the north shore of Lake Erie in open areas generally associated with agriculture and along woodland edges. There have been a few reports from the Bruce-Grey region.
American badger use of home range varies with season and sex. Different areas of the home range are used more frequently at different seasons and usually are related to prey availability. Males generally have larger home ranges than females. In a 1972 study, radiotransmitter-tagged American badgers had an average annual home range of 2,100 acres (850 hectares). The home range of one female was 1,790 acres (720 hectares) in summer, 131 acres (53 hectares) in fall, and 5 acres (2.0 hectares) in winter. Lindzey reported average home ranges of 667 to 1,550 acres (270 to 627 ha). Estimated density of American badgers in Utah scrub-steppe was one per square mile (2.6 km²), with 10 dens in active or recent use.
As of 2014, overdevelopment of American badger habitat had resulted in reduced range, decreased prey, and forced badgers into contact with humans when foraging between fragments. Direct observations in Sonoma County, documenting habitat and badger sightings and foraging, reflect various ranges within the fragmented habitat areas from less than 1/2 mile to approximately 4 miles. Within these areas, the availability of prey and a fresh water source are key factors for the preferred habitat areas and ability to survive. Identifying and conserving habitat areas where there is year-round activity, along with identified burrowing patterns and observations of female badger territory for birthing and raising young have become critical factors in survival of the species.


The American badger is a fossorial carnivore. It preys predominantly on pocket gophers (Geomyidae), ground squirrels (Spermophilus), moles (Talpidae), marmots (Marmota), prairie dogs (Cynomys), pika (Ochotona), woodrats (Neotoma), kangaroo rats (Dipodomys), deer mice (Peromyscus), and voles (Microtus), often digging to pursue prey into their dens, and sometimes plugging tunnel entrances with objects. The American badger is a significant predator of snakes including rattlesnakes, and is considered the most important predator of rattlesnakes in South Dakota. They also prey on ground-nesting birds, such as the bank swallow or sand martin (Riparia riparia) and the burrowing owl (Athene cunicularia), lizards, amphibians, carrion, fish, skunks (Mephitis and Spilogale), insects (including bees and honeycomb), and some plant foods such as corn (Zea mais), peas, green beans, mushrooms and other fungi, and sunflower seeds (Helianthus).


While the American badger is an aggressive animal with few natural enemies, it is still vulnerable to other species in its habitat. Predation on American badger by golden eagles (Aquila chrysaetos), coyotes (Canis latrans) and bobcats (Lynx rufus) have been reported. Bears (Ursus spp.) and gray wolves (Canis lupus) occasionally kill American badgers, while cougars (Puma concolor), according to a 2019 study, apparently are the main predators of adults, hunting them much more frequently than the other carnivorans, with a documented case where the badger is one of the main prey of a collared cat.
American badgers are trapped by humans for their pelts. Their fur is used for shaving and painting brushes.


The American badger (Taxidea taxus) is a North American badger  similar in appearance to the European badger, although not closely related. It is found in the western, central, and northeastern United States, northern Mexico, and south-central Canada to certain areas of southwestern British Columbia.
The American badger's habitat is typified by open grasslands with available prey (such as mice, squirrels, and groundhogs). The species prefers areas such as prairie regions with sandy loam soils where it can dig more easily for its prey.


Badgers are normally solitary animals, but are thought to expand their territories in the breeding season to seek out mates. Mating occurs in late summer and early fall, with some males breeding with more than one female. American badgers experience delayed implantation, with pregnancies suspended until December or as late as February. Young are born from late March to early April in litters ranging from one to five young, averaging about three.
Badgers are born blind, furred, and helpless. Eyes open at four to six weeks. The female feeds her young solid foods prior to complete weaning, and for a few weeks thereafter. Young American badgers first emerge from the den on their own at five to six weeks old. Families usually break up and juveniles disperse from the end of June to August; young American badgers leave their mothers as early as late May or June. Juvenile dispersal movements are erratic.
Most female American badgers become pregnant for the first time after they are a year old. A minority of females four to five months old ovulate and a few become pregnant. Males usually do not breed until their second year.
Large predators occasionally kill American badgers. The average longevity in the wild is 9–10 years, with a record of 14; a captive example lived at least 15 years and five months.


The California sea lion (Zalophus californianus) is a coastal eared seal native to western North America. It is one of six species of sea lions. Its natural habitat ranges from southeast Alaska to central Mexico, including the Gulf of California. California sea lions are sexually dimorphic; males are larger than females, and have a thicker neck, and a protruding sagittal crest. They mainly haul-out on sandy or rocky beaches, but they also frequent manmade environments such as marinas and wharves. California sea lions feed on a number of species of fish and squid, and are preyed on by orcas and great white sharks.
California sea lions have a polygynous breeding pattern. From May to August, males establish territories and try to attract females with which to mate. Females are free to move in between territories, and are not coerced by males. Mothers nurse their pups in between foraging trips. California sea lions communicate with numerous vocalizations, notably with barks and mother-pup contact calls. Outside their breeding season, California sea lions spend much of their time at sea, but they come to shore to molt.
California sea lions are particularly intelligent, can be trained to perform various tasks and display limited fear of humans if accustomed to them. Because of this, California sea lions are a popular choice for public display in zoos, circuses and oceanariums, and are trained by the United States Navy for certain military operations. The International Union for Conservation of Nature (IUCN) lists the species as Least Concern due to its abundance.  To protect fish, the US states of Oregon and Washington engage in annual kill quotas of California sea lions.


California sea lions breed gregariously between May and August, when they arrive at their breeding rookeries. When establishing a territory, the males will try to increase their chances of reproducing by staying on the rookery for as long as possible. During this time, they will fast, relying on a thick layer of fat called blubber for energy. Size and patience allow a male to defend his territory more effectively; the bigger the male, the more blubber he can store and the longer he can wait. A male California sea lion usually keeps his territory for around 27 days. Females have long parturition intervals, and thus the males do not establish their territories until after the females give birth. Most fights occur during this time. After this, the males rely on ritualized displays (vocalizations, head-shaking, stares, bluff lunges, and so on) to maintain their territorial boundaries. Since temperatures can reach over 30 °C (86 °F) during this time, males must include water within their territories. Some territories are underwater, particularly those near steep cliffs. California sea lions that fail to establish a territory are driven out to sea or gather at a nearby beach.
Before mating begins, females gather into "milling" groups of 2–20 individuals. The females in these groups will mount each other as well as the males. These groups begin to disintegrate as the females begin to mate. The territorial and mating system of the California sea lion has been described as similar to a lek system, as females appear to choose their mates while moving through different territories. They avoid males that are too aggressive or energetic. Males are usually unable to prevent females from leaving their territories, particularly in water. Mating may occur outside the rookeries, between non-territorial males and females, as the latter move to and from the mating site. In some rookeries, copulation may be monopolized by a few males, while at others, a single male may sire no more than four pups.
Female California sea lions have a 12-month reproductive cycle, consisting of a 9-month actual gestation and a 3-month delayed implantation of the fertilized egg before giving birth in June or July. Interbirth intervals are particularly long for this species, being 21 days for sea lions off California and more than 30 days for sea lions in the Gulf of California. Females remain with their pups onshore for 10 days and nurse them. After this, females will go on foraging trips lasting as long as three days, returning to nurse their pups for up to a day. Pups left onshore tend to gather in nurseries to socialize and play. When returning from a trip, females call their pups with distinctive calls to which the pups will reply in kind. A mother and pup can distinguish each other's calls from those of other mothers and pups. At first, reunions largely depend on the efforts of the mothers. However, as pups get older, they get more involved in reunions. Older pups may sometimes join their mothers during their foraging trips. Adult male California sea lions play no role in raising pups, but they do take more interest in them than adult males of other otariid species; they have even been observed to help shield swimming pups from predators. Pups are weaned by a year but can continue to suckle for another year.


The Indian flying fox is found across the Indian Subcontinent, including in Bangladesh, Bhutan, India, Tibet, Maldives, Myanmar, Nepal, Pakistan and Sri Lanka.
It roosts in large, established colonies on open tree branches, especially in urban areas or in temples.
It prefers to roost on tall trees with small diameters, especially canopy trees, and prefers to be in close proximity to bodies of water, human residences, and agricultural land.
This habitat selection is highly dependent on food availability. For example, many residences within the bat's distribution have outdoor gardens that support its generalist frugivorous feeding habits. This tendency to support a generalist frugivorous diet through habitat selection also leads it to commonly roost in highly fragmented forests, where the variety of plant species allows it to better utilize its feeding habits.
Its populations are constantly threatened through habitat destruction caused by urbanization or widening of roads. Tree roosts are often felled and colonies dispersed. Smaller colonies tend to remain in place longer than larger colonies, as those larger colonies have their roosts felled more quickly.


The Indian flying fox (Pteropus medius, formerly Pteropus giganteus), also known as the greater Indian fruit bat, is a species of flying fox native to the Indian subcontinent. It is one of the largest bats in the world. It is of interest as a disease vector, as it is capable of transmitting several viruses to humans. It is nocturnal and feeds mainly on ripe fruits, such as mangoes and bananas, and nectar. This species is often regarded as vermin due to its destructive tendencies towards fruit farms, but the benefits of its pollination and seed propagation often outweigh the impacts of its fruit consumption.


The Indian flying fox is India's largest bat, and one of the largest bats in the world, weighing up to 1.6 kg (3.5 lb). Its body mass ranges from 0.6–1.6 kg (1.3–3.5 lb), and males are generally larger than females. The wingspan ranges from 1.2–1.5 m (3 ft 11 in – 4 ft 11 in) and body length averages 15.5–22.0 cm (6.1–8.7 in). The wings rise from the side of the dorsum and from the back of the second toe, and its thumb has a powerful claw. It has claws on only its first two digits of its wings, with the thumb possessing the more powerful claw, and all five digits of its leg. It lacks a tail.
The Indian flying fox ranges in color, with a black back that is lightly streaked with grey, a pale, yellow-brown mantle, a brown head, and dark, brownish underparts. It has large eyes, simple ears, and no facial ornamentation—a typical appearance for a species of the genus Pteropus. The skull is oval-shaped and the greatest length of the skull is 71–75.6 mm (2.80–2.98 in). The orbital rim of the skull is incomplete. The ears lack a tragus or antitragus and are ringed, and the ears range in length from 35–40 mm (1.4–1.6 in) in length.
The dental formula is . The first upper premolar is absent, the canine is pronounced, and the molars have a longitudinal furrow.
As of 1999, it is the longest-lived member of its genus; one individual lived for 31 years and 5 months in captivity.


The Indian flying fox is a polygynandrous species, and breeds yearly from July to October. Births occur from February to May. Gestation period is typically 140 to 150 days. The average birth number is 1 to 2 pups. Among members of the genus Pteropus, pups are carried by the mother for the first few weeks of life, with weaning occurring around 5 months of age. Males do not participate in parental care. Young bats learn to fly at approximately 11 weeks of age. Reproductive maturity occurs at 18–24 months.
It has a common mammalian annual breeding season. Its testes increase in weight as days grow shorter, and are heaviest in October and November. Their weight quickly decreases after eggs are fertilized. Sperm are abundant in the epididymides throughout the year. Just before daylength begins to increase in December, conception occurs. The young are born in May, as pregnancy lasts roughly six months. Copulation rates tend to increase as days grow shorter.
To initiate copulation males capture the attention of females with continuous flapping of their wings (probably to spread the odor from male scent glands), though this usually only serves to encourage females to escape. Copulation tends to occur with females that fail to escape after courtship. Males chase females persistently for up to half of an hour until they successfully corner the female. Females attempt to protect themselves and escape during copulation and call constantly. Copulation ranges from 30 to 70 seconds on average. Males do not release females until copulation ends, and afterwards both bats remain silent until the end of the day.
Both before and after copulation, Indian flying foxes engage in oral sex, with males performing cunnilingus on females.
The duration of oral sex is positively associated with the duration of copulation, suggesting that its purpose is to make the female more receptive to copulation and to increase the male's chances of fertilizing an ovum. Males of this species also engage in homosexual fellatio the function and purpose of which is not yet confirmed.


Cape porcupines are found across the whole of southern and central Africa, to southern Kenya, Uganda, and Congo at the northern edge of their range. They inhabit a wide range of habitats, from sea level to 2,000 metres (6,600 ft), although they are only marginally present in dense forests and the driest of deserts, and are not found in swampland. There are no currently recognised subspecies.


Cape porcupines eat mostly plant material: fruits, roots, tubers, bulbs, and bark. They have a long small intestine and large caecum, employing hindgut fermentation to break down the tough materials in their food. They have also been reported to gnaw on carrion and bones. They are often considered pests by local farmers, because they can feed on crops and damage trees. However, their debarking of trees may also play a role in the maintenance of local savannah ecosystems, helping to prevent the development of denser forested environments.
Cape porcupines are nocturnal and monogamous, typically living as mated pairs of adults, caring for any young together. Each pair may inhabit up to six burrows, jointly defending their shared territory, although they typically forage as individuals. Both sexes scent mark their territory, although males do so more frequently, and may play a more active role in its defence. The size of the home range varies depending on the local habitat and availability of food, but can range between at least 67 and 203 hectares (170 and 500 acres).
When attacked, the porcupine freezes. If cornered, it turns vicious and charges to stab its attacker with its quills. Otherwise, the porcupine may retreat into its burrow, exposing only its quills and making it hard to dislodge.


The Cape porcupine (Hystrix africaeaustralis), Cape crested porcupine or South African porcupine, is a species of Old World porcupine native to central and southern Africa.


Cape porcupines mate throughout the year, although births are most common during the rainy season, between August and March. Unless a previous litter is lost, females typically give birth only once each year. Oestrus lasts for an average of nine days, during which a membrane across the vagina opens to allow insemination. After mating, a copulatory plug forms, which is expelled about 48 hours later.
Gestation lasts around 94 days, and results in the birth of a litter of up to three young, although over half of births are of singletons. Newborn young weigh 300 to 440 grams (11 to 16 oz), and initially have soft quills. Although they are born with their incisor teeth fully erupted, the remaining teeth begin to appear at 14 days, with the full set of adult teeth present by 25 months. They are weaned at around 100 days of age, and grow rapidly for the first twenty weeks, reaching the full adult size, and sexual maturity, at the end of their first year.
Relative to most other rodents, Cape porcupines are long-lived, surviving for ten years in the wild, or up to twenty years in captivity.


The fisher (Pekania pennanti) is a small, carnivorous mammal native to North America, a forest-dwelling creature whose range covers much of the boreal forest in Canada to the northern United States. It is a member of the mustelid family (commonly referred to as the weasel family), and is in the monospecific genus Pekania. It is sometimes misleadingly referred to as a fisher cat, although it is not a cat.
The fisher is closely related to, but larger than, the American marten (Martes americana) and Pacific marten (Martes caurina). In some regions, the fisher is known as a pekan, derived from its name in the Abenaki language, or wejack, an Algonquian word (cf. Cree wuchak, otchock, Ojibwa ojiig) borrowed by fur traders. Other Native American names for the fisher are Chipewyan thacho and Carrier chunihcho, both meaning "big marten", and Wabanaki uskool.
Fishers have few predators besides humans. They have been trapped since the 18th century for their fur. Their pelts were in such demand that they were extirpated from several parts of the United States in the early part of the 20th century. Conservation and protection measures have allowed the species to rebound, but their current range is still reduced from its historic limits. In the 1920s, when pelt prices were high, some fur farmers attempted to raise fishers. However, their unusual delayed reproduction made breeding difficult. When pelt prices fell in the late 1940s, most fisher farming ended. While fishers usually avoid human contact, encroachments into forest habitats have resulted in some conflicts.
Male and female fishers look similar, but can be differentiated by size; males being up to twice as large as the females. The fur of the fisher varies seasonally, being denser and glossier in the winter. During the summer, the color becomes more mottled, as the fur goes through a moulting cycle. The fisher prefers to hunt in full forest. Although an agile climber, it spends most of its time on the forest floor, where it prefers to forage around fallen trees. An omnivore, the fisher feeds on a wide variety of small animals and occasionally on fruits and mushrooms. It prefers the snowshoe hare and is one of the few animals able to prey successfully on porcupines. Despite its common name, it rarely eats fish. The reproductive cycle of the fisher lasts almost a year. Female fishers give birth to a litter of three or four kits in the spring. They nurse and care for their kits until late summer, when they are old enough to set out on their own. Females enter estrus shortly after giving birth and leave the den to find a mate. Implantation of the blastocyst is delayed until the following spring, when they give birth and the cycle is renewed.


As far as is known, adult  fishers are not regularly subject to predation. The occasional fishers reported as killed by other predators were probably ill, old, otherwise in poor health, or  lacking in appropriate behavior, making them easy and not dangerous to kill. Predators of the fisher included bears (Ursus  spp), coyotes (Canis latrans), golden eagles (Aquila chrysaetos), lynxes (Lynx sp.), mountain lions (Puma concolor), wolverines (Gulo gulo), and possibly great horned owls (Bubo virginianus).
Parasites of fishers include nematode Baylisascaris devosi, tapeworm Taenia sibirica, nematode Physaloptera sp., trematodes Alaria mustelae and Metorchis conjunctus, nematode Trichinella spiralis, and Molineus sp.


The female fisher begins to breed at about one year of age and her reproductive cycle is an almost year-long event. Mating takes place in late March to early April. Blastocyst implantation is then delayed for ten months until mid-February of the following year when active pregnancy begins. After gestating for about 50 days, the female gives birth to one to four kits. The female then enters estrus 7–10 days later and the breeding cycle begins again.
Females den in hollow trees. Kits are born blind, helpless, and are partially covered with fine hair. Kits begin to crawl after about three weeks. After about seven weeks, they open their eyes. They start to climb after eight weeks. Kits are completely dependent on their mother's milk for the first eight to ten weeks, after which they begin to switch to a solid diet. After four months, kits become intolerant of their litter mates, and at five months, the mother pushes them out on their own. After one year, juveniles will have established their own range.


Fishers have been captured live for fur farming, zoo specimens, and scientific research. From 1920–1946, pelt prices averaged about C$137. Since pelts were relatively valuable, attempts were made to raise fishers on farms. Fur farming was popular with other species such as mink and ermine, so the same techniques were thought to be applicable to fishers. However, farmers found it difficult to raise fishers due to their unusual reproductive cycle. In general, knowledge of delayed implantation in fishers was unknown at the time. Farmers noted that females mated in the spring but did not give birth. Due to declining pelt prices, most fisher farms closed operations by the late 1940s.
Fishers have also been captured and bred by zoos, but they are not a common zoo species. Fishers are poor animals to exhibit because, in general, they hide from visitors all day. Some zoos have had difficulty keeping fishers alive since they are susceptible to many diseases in captivity. Yet at least one example shows a fisher kept in captivity that lived to be 10 years old, and another living to be about 14 years old, well beyond its natural lifespan of 7 years.
In 1974, R.A. Powell raised two fisher kits for the purpose of performing scientific research. His primary interest was an attempt to measure the activity of fishers to determine how much food the animals required to function. He did this by running them through treadmill exercises that simulated activity in the wild. He compared this to their food intake and used the data to estimate daily food requirements. The research lasted for two years. After one year, one of the fishers died due to unknown causes. The second was released back into the wilderness of Michigan's Upper Peninsula.


Ranges from 0 to 3,000 m (0 to 9,843 ft) in elevation. It inhabits many types of forests, and can be found in picnic grounds.


It is found in Central and South America (Colombia, Costa Rica, Ecuador, Panama, and Venezuela) and the Caribbean islands of Trinidad and Tobago and Margarita. According to the Global Register of Introduced and Invasive Species it has also been introduced and is invasive in Cuba, however this refers to a small population found around some parts of the margin of Rio Almendares in Havana, which escaped from the Havana Zoo.


The capybara or greater capybara (Hydrochoerus hydrochaeris) is a giant cavy rodent native to South America. It is the largest living rodent and a member of the genus Hydrochoerus. The only other extant member is the lesser capybara (Hydrochoerus isthmius). Its close relatives include guinea pigs and rock cavies, and it is more distantly related to the agouti, the chinchilla, and the nutria. The capybara inhabits savannas and dense forests and lives near bodies of water. It is a highly social species and can be found in groups as large as 100 individuals, but usually lives in groups of 10–20 individuals. The capybara  is hunted for its meat and hide and also for grease from its thick fatty skin. It is not considered a threatened species.


Capybaras are herbivores, grazing mainly on grasses and aquatic plants, as well as fruit and tree bark. They are very selective feeders and feed on the leaves of one species and disregard other species surrounding it. They eat a greater variety of plants during the dry season, as fewer plants are available. While they eat grass during the wet season, they have to switch to more abundant reeds during the dry season. Plants that capybaras eat during the summer lose their nutritional value in the winter, so they are not consumed at that time. The capybara's jaw hinge is not perpendicular, so they chew food by grinding back-and-forth rather than side-to-side. Capybaras are autocoprophagous, meaning they eat their own feces as a source of bacterial gut flora, to help digest the cellulose in the grass that forms their normal diet, and to extract the maximum protein and vitamins from their food. They also regurgitate food to masticate again, similar to cud-chewing by cattle. As is the case with other rodents, the front teeth of capybaras grow continually to compensate for the constant wear from eating grasses; their cheek teeth also grow continuously.
Like its relative the guinea pig, the capybara does not have the capacity to synthesize vitamin C, and capybaras not supplemented with vitamin C in captivity have been reported to develop gum disease as a sign of scurvy.
They can have a lifespan of 8–10 years, but tend to live less than four years in the wild due to predation from jaguars, pumas, ocelots, eagles, and caimans. The capybara is also the preferred prey of the green anaconda.


When in estrus, the female's scent changes subtly and nearby males begin pursuit. In addition, a female alerts males she is in estrus by whistling through her nose. During mating, the female has the advantage and mating choice. Capybaras mate only in water, and if a female does not want to mate with a certain male, she either submerges or leaves the water. Dominant males are highly protective of the females, but they usually cannot prevent some of the subordinates from copulating. The larger the group, the harder it is for the male to watch all the females. Dominant males secure significantly more matings than each subordinate, but subordinate males, as a class, are responsible for more matings than each dominant male. The lifespan of the capybara's sperm is longer than that of other rodents.
Capybara gestation is 130–150 days, and produces a litter of four young on average, but may produce between one and eight in a single litter. Birth is on land and the female rejoins the group within a few hours of delivering the newborn capybaras, which join the group as soon as they are mobile. Within a week, the young can eat grass, but continue to suckle—from any female in the group—until weaned around 16 weeks. The young form a group within the main group. Alloparenting has been observed in this species. Breeding peaks between April and May in Venezuela and between October and November in Mato Grosso, Brazil.


Though quite agile on land, capybaras are equally at home in the water. They are excellent swimmers, and can remain completely submerged for up to five minutes, an ability they use to evade predators. Capybaras can sleep in water, keeping only their noses out. As temperatures increase during the day, they wallow in water and then graze during the late afternoon and early evening. They also spend time wallowing in mud. They rest around midnight and then continue to graze before dawn.


The rock hyrax (/ˈhaɪ.ræks/; Procavia capensis), also called dassie, Cape hyrax, rock rabbit, and (in the King James Bible) coney, is a medium-sized terrestrial mammal native to Africa and the Middle East. Commonly referred to in South Africa as the dassie (IPA: [dasiː]; Afrikaans: klipdassie), it is one of the five living species of the order Hyracoidea, and the only one in the genus Procavia.
Rock hyraxes weigh 4–5 kg (8.8–11.0 lb) and have short ears and tails.
Rock hyraxes are found at elevations up to 4,200 m (13,800 ft) above sea level in habitats with rock crevices, allowing them to escape from predators. They are the only extant terrestrial afrotherians in the Middle East. Hyraxes typically live in groups of 10–80 animals, and forage as a group. They have been reported to use sentries to warn of the approach of predators.  Having incomplete thermoregulation, they are most active in the morning and evening, although their activity pattern varies substantially with season and climate.
Over most of its range, the rock hyrax is not endangered, and in some areas is considered a minor pest. In Ethiopia, Israel, and Jordan, it is a reservoir of the leishmaniasis parasite.
Along with other hyrax species and the sirenians, this species is the most closely related to the elephant.


Hyraxes feed on a wide variety of plant species, including Lobelia and broad-leafed plants. They also have been reported to eat insects and grubs. They forage for food up to about 50 m from their refuge, usually feeding as a group and with one or more acting as sentries from a prominent lookout position. On the approach of danger, the sentries give an alarm call, and the animals quickly retreat to their refuge.
They are able to go for many days without water due to the moisture they obtain through their food, but quickly dehydrate under direct sunlight.  Despite their seemingly clumsy build, they are able to climb trees (although not as readily as Heterohyrax), and readily enter residential gardens to feed on the leaves of citrus and other trees.
The rock hyrax also makes a loud, grunting sound while moving its jaws as if chewing, and this behaviour may be a sign of aggression. Some authors have proposed that observation of this behavior by ancient Israelites gave rise to the misconception given in Leviticus 11:4–8 that the hyrax chews the cud, but the hyrax is not a ruminant.


Rock hyraxes build dwelling holes in any type of rock with suitable cavities, such as sedimentary rocks and soil.
In Mount Kenya, rock hyraxes live in colonies comprising an adult male, several adult females, and immatures. They are active during the day, and sometimes during moonlit nights. The dominant male defends and watches over the group. The male also marks his territory.
In Africa, hyraxes are preyed on by leopards, Egyptian cobras, puff adders, rock pythons, caracals, wild dogs, hawks, and owls. Verreaux's eagle in particular is a specialist hunter of hyraxes. In Israel, the rock hyrax is reportedly rarely preyed upon by terrestrial predators, as their system of sentries and reliable refuges provide considerable protection. Hyrax remains are almost absent from the droppings of wolves in the Judean Desert.


Rock hyraxes give birth to two to four young after a gestation period of 6–7 months (long, for their size). The young are well developed at birth with fully opened eyes and complete pelage. Young can ingest solid food after two weeks and are weaned at 10 weeks. After 16 months, they become sexually mature, they reach adult size at 3 years, and they typically live about 10 years.  During seasonal changes, the weight of the male reproductive organs (testes, seminal vesicles) changes due to sexual activity. Between May and January, the males were inactive sexually. From February onward,  the weight of these organs increased dramatically, and the males are able to copulate.


The bank vole (Myodes glareolus) is a small vole with red-brown fur and some grey patches, with a tail about half as long as its body. A rodent, it lives in woodland areas and is around 100 millimetres (3.9 in) in length. The bank vole is found in much of Europe and in northwestern Asia. It is native to Great Britain but not to Ireland, where it has been accidentally introduced, and has now colonised much of the south and southwest.
The bank vole lives in woodland, hedgerows and other dense vegetation such as bracken and bramble. Its underground chamber is lined with moss, feathers and vegetable fibre and contains a store of food. It can live for eighteen months to two years in the wild and over 42 months in captivity and is mostly herbivorous, eating buds, bark, seeds, nuts, leaves and fruits and occasionally insects and other small invertebrates. It readily climbs into scrub and low branches of trees although it is not as versatile as a mouse. It breeds in shallow burrows, the female rearing about four litters of pups during the summer.


The bank vole is plentiful during much of the year and plays an important part in the diet of various predators including the red fox (Vulpes vulpes), the stoat (Mustela erminea), the least weasel (Mustela nivalis), the European mink (Mustela lutreola), the common kestrel (Falco tinnunculus), the rough-legged buzzard (Buteo lagopus) and the tawny owl (Strix aluco). The voles try to prevent being caught by avoiding open areas of ground, by using tunnels and well-worn paths through the undergrowth.
The bank vole acts as a reservoir of infection for the Puumala virus, which can infect humans, causing a haemorrhagic fever known as nephropathia epidemica and, in extreme cases, even death. Although this hantavirus has co-evolved with its host, its presence among populations seems to decrease their over-winter survival rates.


Females maintain territories which may overlap somewhat, and males occupy larger territories covering those of several females. The home range of females is usually between 500 and 2,000 square metres (5,400 and 21,500 sq ft). The breeding season lasts from late April to September. Females appear to prefer dominant males and may actively avoid other vagrant males. The gestation period averages 21 days, being longer if the female is still lactating from a previous litter. A litter can be up to ten pups but the average number is four to eight. Females sometimes kill pups in burrows in adjoining territories and males sometimes kill pups before mating with their mother, perhaps as a tactic to ensure his offspring are advantaged. The pups are naked and helpless and their eyes open at about nine days. They are weaned at 20 to 25 days and the females become sexually mature by six weeks with the males reaching maturity by eight weeks. There may be up to four litters per year and as the youngsters start to breed, numbers quickly build up over the summer months. The bank vole lives for up to two years in the wild. In captivity this can increase to over 42 months, with the older voles tending to spend most time resting, less physically agile, though still capable of having a spin on the wheel.


The long-tailed weasel is a fearless and aggressive hunter which may attack animals far larger than itself. When stalking, it waves its head from side to side in order to pick up the scent of its prey. It hunts small prey, such as mice, by rushing at them and killing them with one bite to the head. With large prey, such as rabbits, the long-tailed weasel strikes quickly, taking its prey off guard. It grabs the nearest part of the animal and climbs upon its body, maintaining its hold with its feet. The long-tailed weasel then manoeuvres itself to inflict a lethal bite to the neck.
The long-tailed weasel is an obligate carnivore which prefers its prey to be fresh or alive, eating only the carrion stored within its burrows. Rodents are almost exclusively taken when they are available. Its primary prey consists of mice, rats, squirrels, chipmunks, shrews, moles and rabbits. Occasionally, it may eat small birds, bird eggs, reptiles, amphibians, fish, earthworms and some insects. The species has also been observed to take bats from nursery colonies. It occasionally surplus kills, usually in spring when the kits are being fed, and again in autumn. Some of the surplus kills may be cached, but are usually left uneaten. Kits in captivity eat from ¼–½ of their body weight in 24 hours, while adults eat only one fifth to one third. After killing its prey, the long-tailed weasel laps up the blood, but does not suck it, as is popularly believed. With small prey, also the fur, feathers, flesh and bones are consumed, but only some flesh is eaten from large prey. When stealing eggs, the long-tailed weasel removes each egg from its nest one at a time, then carries it in its mouth to a safe location where it bites off the top and licks out the contents or if they have babies in the den they may hold it in their mouth all the way back to them.


The enemies of the long-tailed weasel are usually coyotes, foxes, wildcats, wolves, and the Canadian lynx. The weasel will give off its musky odor, however, this is not primarily used when encountering other creatures. This type of reaction is reserved for when the weasel feels it is in danger, or when it is looking for a mate.


The long-tailed weasel (Neogale frenata), also known as the bridled weasel, masked ermine, or big stoat, is a species of mustelid distributed from southern Canada throughout all the United States and Mexico, southward through all of Central America and into northern South America. It is distinct from the short-tailed weasel (Mustela erminea), also known as a "stoat", a close relation in the genus Mustela that originated in Eurasia and crossed into North America some half million years ago; the two species are visually similar, especially the black tail tip.


The long-tailed weasel mates in July–August, with implantation of the fertilized egg on the uterine wall being delayed until about March. The gestation period lasts 10 months, with actual embryonic development taking place only during the last four weeks of this period, an adaptation to timing births for spring, when small mammals are abundant. Litter size generally consists of 5–8 kits, which are born in April–May. The kits are born partially naked, blind and weighing 3 grams, about the same weight of a hummingbird. The long-tailed weasel's growth rate is rapid, as by the age of three weeks, the kits are well furred, can crawl outside the nest and eat meat. At this time, the kits weigh 21–27 grams. At five weeks of age, the kit's eyes open, and the young become physically active and vocal. Weaning begins at this stage, with the kits emerging from the nest and accompanying the mother in hunting trips a week later. The kits are fully grown by autumn, at which time the family disbands. The females are able to breed at 3–4 months of age, while males become sexually mature at 15–18 months.


The southern red-backed salamander (Plethodon serratus) is a species of salamander endemic to the United States. It is found in four widely disjunct populations: one in central Louisiana; one in the Ouachita Mountains of Arkansas and Oklahoma; one in central Missouri; and one from southeastern Tennessee, to southwestern North Carolina, western Georgia, and eastern Alabama. It is sometimes referred to as the Georgia red-backed salamander or the Ouachita red-backed salamander. It was once considered a subspecies of the red-backed salamander, Plethodon cinereus.


Mostly nocturnal, it is often found under ground debris in moist, forested areas. In dry seasons, it moves closer to permanent water sources. Its primary diet is small arthropods and mollusks.


The southern red-backed salamander is typically gray or black in color, with a red-brown, fading stripe across the width of its back. It grows from 8 to 11 cm (3 to 4 in) in length. Similar to Plethodon cinereus, Plethodon serratus comes in several atypical color variations. The typical red backed phase with a red dorsal stripe consists of most individuals. The atypical variations include a lead backed phase with a dark grey stripe, a silver back phase with a light grey dorsal stripe, hypomelanistic (leucistic) varations of the red backed form, and the rare white backed, or ghost phase. Unlike P. cinereus, P. serratus has not yet been found to have an erythristic variation.


Sea otters live in coastal waters 15 to 23 metres (49 to 75 ft) deep, and usually stay within a kilometre (⅔ mi) of the shore. They are found most often in areas with protection from the most severe ocean winds, such as rocky coastlines, thick kelp forests, and barrier reefs. Although they are most strongly associated with rocky substrates, sea otters can also live in areas where the sea floor consists primarily of mud, sand, or silt. Their northern range is limited by ice, as sea otters can survive amidst drift ice but not land-fast ice. Individuals generally occupy a home range a few kilometres long, and remain there year-round.
The sea otter population is thought to have once been 150,000 to 300,000, stretching in an arc across the North Pacific from northern Japan to the central Baja California Peninsula in Mexico. The fur trade that began in the 1740s reduced the sea otter's numbers to an estimated 1,000 to 2,000 members in 13 colonies. Hunting records researched by historian Adele Ogden place the westernmost limit of the hunting grounds off the northern Japanese island of Hokkaido and the easternmost limit off Punta Morro Hermosa about 21+1⁄2 miles (34.6 km) south of Punta Eugenia, Baja California's westernmost headland in Mexico.
In about two-thirds of its former range, the species is at varying levels of recovery, with high population densities in some areas and threatened populations in others. Sea otters currently have stable populations in parts of the Russian east coast, Alaska, British Columbia, Washington, and California, with reports of recolonizations in Mexico and Japan. Population estimates made between 2004 and 2007 give a worldwide total of approximately 107,000 sea otters.


High energetic requirements of sea otter metabolism require them to consume at least 20% of their body weight a day. Surface swimming and foraging are major factors in their high energy expenditure due to drag on the surface of the water when swimming and the thermal heat loss from the body during deep dives when foraging.  Sea otter muscles are specially adapted to generate heat without physical activity.
Sea otters consume over 100 prey species. In most of its range, the sea otter's diet consists almost exclusively of marine benthic invertebrates, including sea urchins, fat innkeeper worms, a variety of bivalves such as clams and mussels, abalone, other mollusks, crustaceans, and snails. Its prey ranges in size from tiny limpets and crabs to giant octopuses. Where prey such as sea urchins, clams, and abalone are present in a range of sizes, sea otters tend to select larger items over smaller ones of similar type. In California, they have been noted to ignore Pismo clams smaller than 3 inches (76 mm) across.
In a few northern areas, fish are also eaten. In studies performed at Amchitka Island in the 1960s, where the sea otter population was at carrying capacity, 50% of food found in sea otter stomachs was fish. The fish species were usually bottom-dwelling and sedentary or sluggish forms, such as Hemilepidotus hemilepidotus and family Tetraodontidae. However, south of Alaska on the North American coast, fish are a negligible or extremely minor part of the sea otter's diet. Contrary to popular depictions, sea otters rarely eat starfish, and any kelp that is consumed apparently passes through the sea otter's system undigested.
The individuals within a particular area often differ in their foraging methods and prey types, and tend to follow the same patterns as their mothers. The diet of local populations also changes over time, as sea otters can significantly deplete populations of highly preferred prey such as large sea urchins, and prey availability is also affected by other factors such as fishing by humans. Sea otters can thoroughly remove abalone from an area except for specimens in deep rock crevices, however, they never completely wipe out a prey species from an area. A 2007 Californian study demonstrated, in areas where food was relatively scarce, a wider variety of prey was consumed. Surprisingly, though, the diets of individuals were more specialized in these areas than in areas where food was plentiful.


Leading mammalian predators of this species include orcas and sea lions, and bald eagles may grab pups from the surface of the water. Young predators may kill an otter and not eat it. On land, young sea otters may face attack from bears and coyotes. In California, great white sharks are their primary predator but there is no evidence that the sharks eat them.
Urban runoff transporting cat feces into the ocean brings Toxoplasma gondii, an obligate parasite of felids, which has killed sea otters. Parasitic infections of Sarcocystis neurona are also associated with human activity. According to the U.S. Geological Survey and the CDC, northern sea otters off Washington have been infected with the H1N1 flu virus and "may be a newly identified animal host of influenza viruses".


The sea otter (Enhydra lutris) is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. Adult sea otters typically weigh between 14 and 45 kg (30 and 100 lb), making them the heaviest members of the weasel family, but among the smallest marine mammals. Unlike most marine mammals, the sea otter's primary form of insulation is an exceptionally thick coat of fur, the densest in the animal kingdom. Although it can walk on land, the sea otter is capable of living exclusively in the ocean.
The sea otter inhabits nearshore environments, where it dives to the sea floor to forage. It preys mostly on marine invertebrates such as sea urchins, various mollusks and crustaceans, and some species of fish. Its foraging and eating habits are noteworthy in several respects. Its use of rocks to dislodge prey and to open shells makes it one of the few mammal species to use tools. In most of its range, it is a keystone species, controlling sea urchin populations which would otherwise inflict extensive damage to kelp forest ecosystems. Its diet includes prey species that are also valued by humans as food, leading to conflicts between sea otters and fisheries.
Sea otters, whose numbers were once estimated at 150,000–300,000, were hunted extensively for their fur between 1741 and 1911, and the world population fell to 1,000–2,000 individuals living in a fraction of their historic range. A subsequent international ban on hunting, sea otter conservation efforts, and reintroduction programs into previously populated areas have contributed to numbers rebounding, and the species occupies about two-thirds of its former range. The recovery of the sea otter is considered an important success in marine conservation, although populations in the Aleutian Islands and California have recently declined or have plateaued at depressed levels. For these reasons, the sea otter remains classified as an endangered species.


Sea otters are polygynous: males have multiple female partners, typically those that inhabit their territory. If no territory is established, they seek out females in estrus. When a male sea otter finds a receptive female, the two engage in playful and sometimes aggressive behavior. They bond for the duration of estrus, or 3 days. The male holds the female's head or nose with his jaws during copulation. Visible scars are often present on females from this behavior.
Births occur year-round, with peaks between May and June in northern populations and between January and March in southern populations. Gestation appears to vary from four to twelve months, as the species is capable of delayed implantation followed by four months of pregnancy. In California, sea otters usually breed every year, about twice as often as those in Alaska.
Birth usually takes place in the water and typically produces a single pup weighing 1.4 to 2.3 kilograms (3 lb 1 oz to 5 lb 1 oz). Twins occur in 2% of births; however, usually only one pup survives. At birth, the eyes are open, ten teeth are visible, and the pup has a thick coat of baby fur. Mothers have been observed to lick and fluff a newborn for hours; after grooming, the pup's fur retains so much air, the pup floats like a cork and cannot dive. The fluffy baby fur is replaced by adult fur after about 13 weeks.
Nursing lasts six to eight months in Californian populations and four to twelve months in Alaska, with the mother beginning to offer bits of prey at one to two months. The milk from a sea otter's two abdominal nipples is rich in fat and more similar to the milk of other marine mammals than to that of other mustelids. A pup, with guidance from its mother, practices swimming and diving for several weeks before it is able to reach the sea floor. Initially, the objects it retrieves are of little food value, such as brightly colored starfish and pebbles. Juveniles are typically independent at six to eight months, but a mother may be forced to abandon a pup if she cannot find enough food for it; at the other extreme, a pup may nurse until it is almost adult size. Pup mortality is high, particularly during an individual's first winter – by one estimate, only 25% of pups survive their first year. Pups born to experienced mothers have the highest survival rates.
Females perform all tasks of feeding and raising offspring, and have occasionally been observed caring for orphaned pups. Much has been written about the level of devotion of sea otter mothers for their pups – a mother gives her infant almost constant attention, cradling it on her chest away from the cold water and attentively grooming its fur. When foraging, she leaves her pup floating on the water, sometimes wrapped in kelp to keep it from floating away; if the pup is not sleeping, it cries loudly until she returns. Mothers have been known to carry their pups for days after the pups' deaths.
Females become sexually mature at around three or four years of age and males at around five; however, males often do not successfully breed until a few years later. A captive male sired offspring at age 19. In the wild, sea otters live to a maximum age of 23 years, with lifespans ranging from 10 to 15 years for males and 15–20 years for females. Several captive individuals have lived past 20 years, and a female at the Seattle Aquarium died at the age of 28 years. Sea otters in the wild often develop worn teeth, which may account for their apparently shorter lifespans.


In the wild, eastern gray squirrels can be found inhabiting large areas of mature, dense woodland ecosystems, generally covering 100 acres (40 hectares) of land. These forests usually contain large mast-producing trees such as oaks and hickories, providing ample food sources. Oak-hickory hardwood forests are generally preferred over coniferous forests due to the greater abundance of mast forage. This is why they are found only in parts of eastern Canada which do not contain boreal forest (i.e. they are found in some parts of New Brunswick, in southwestern Quebec, throughout southern Ontario and in southern Manitoba).
Eastern gray squirrels generally prefer constructing their dens upon large tree branches and within the hollow trunks of trees. They also have been known to take shelter within abandoned bird nests. The dens are usually lined with moss plants, thistledown, dried grass, and feathers. These perhaps provide and assist in the insulation of the den, used to reduce heat loss. A cover to the den is usually built afterwards.
Close to human settlements, eastern gray squirrels are found in parks and back yards of houses within urban environments and in the farmlands of rural environments.


Eastern gray squirrels eat a range of foods, such as tree bark, tree buds, flowers, berries, many types of seeds and acorns, walnuts, and other nuts, like hazelnuts (see picture) and some types of fungi found in the forests, including fly agaric mushrooms (Amanita muscaria). They can cause damage to trees by tearing the bark and eating the soft cambial tissue underneath. In Europe, sycamore (Acer pseudoplatanus L.) and beech (Fagus sylvatica L.) suffer the greatest damage. The seeds and catkins of gymnosperms cedar, hemlock, pine, and spruce are another food source, as well as those of angiosperms such as hickory, oak, and walnut, and truffles. The squirrels also raid gardens for wheat, tomatoes, corn, strawberries, and other garden crops. Sometimes they eat the tomato seeds and discard the rest. On occasion, eastern gray squirrels also prey upon insects, frogs, small rodents including other squirrels, and small birds, their eggs, and young. They also gnaw on bones, antlers, and turtle shells – likely as a source of minerals scarce in their normal diet.
Eastern gray squirrels have a high enough tolerance for humans to inhabit residential neighborhoods and raid bird feeders for millet, corn, and sunflower seeds. Some people who feed and watch birds for entertainment also intentionally feed seeds and nuts to the squirrels for the same reason. However, in the UK eastern gray squirrels can take a significant proportion of supplementary food from feeders, preventing access and reducing use by wild birds. Attraction to supplementary feeders can increase local bird nest predation, as eastern gray squirrels are more likely to forage near feeders, resulting in increased likelihood of finding nests, eggs and nestlings of small passerines.


Predators include hawks, weasels, raccoons, bobcats, foxes, domestic and feral cats, snakes, owls, and dogs. In its introduced range in South Africa, it has been preyed on by African harrier-hawks.


The eastern gray squirrel (Sciurus carolinensis), also known, particularly outside of North America, as simply the grey squirrel, is a tree squirrel in the genus Sciurus. It is native to eastern North America, where it is the most prodigious and ecologically essential natural forest regenerator. Widely introduced to certain places around the world, the eastern gray squirrel in Europe, in particular, is regarded as an invasive species.
In Europe, Sciurus carolinensis is included since 2016 in the list of Invasive Alien Species of Union concern (the Union list). This implies that this species cannot be imported, bred, transported, commercialized, or intentionally released into the environment in the whole of the European Union.


Eastern gray squirrels can breed twice a year, but younger and less experienced mothers normally have a single litter per year in the spring. Depending on forage availability, older and more experienced females may breed again in summer. In a year of abundant food, 36% of females bear two litters, but none will do so in a year of poor food. Their breeding seasons are December to February and May to June, though this is slightly delayed in more northern latitudes. The first litter is born in February or March, the second in June or July, though, again, bearing may be advanced or delayed by a few weeks depending on climate, temperature, and forage availability. In any given breeding season, an average of 61 – 66% of females bear young. If a female fails to conceive or loses her young to unusually cold weather or predation, she re-enters estrus and has a later litter. Five days before a female enters estrus, she may attract up to 34 males from up to 500 meters away. Eastern gray squirrels exhibit a form of polygyny, in which the competing males will form a hierarchy of dominance, and the female will mate with multiple males depending on the hierarchy established.
Normally, one to four young are born in each litter, but the largest possible litter size is eight. The gestation period is about 44 days. The young are weaned around 10 weeks, though some may wean up to six weeks later in the wild. They begin to leave the nest after 12 weeks, with autumn born young often wintering with their mother. Only one in four squirrel kits survives to one year of age, with mortality around 55% for the following year. Mortality rates then decrease to around 30% for following years until they increase sharply at eight years of age.
Rarely, eastern gray females can enter estrus as early as five and a half months old, but females are not normally fertile until at least one year of age. Their mean age of first estrus is 1.25 years. The presence of a fertile male will induce ovulation in a female going through estrus. Male eastern grays are sexually mature between one and two years of age. Reproductive longevity for females appears to be over 8 years, with 12.5 years documented in North Carolina. These squirrels can live to be 20 years old in captivity, but in the wild live much shorter lives due to predation and the challenges of their habitat. At birth, their life expectancy is 1–2 years, an adult typically can live to be six, with exceptional individuals making it to 12 years.


It contains two extant species, each in their own genus, both of which are native to North America:
Genus Neofiber
Round-tailed muskrat, N. alleni
Genus Ondatra
Muskrat, O. zibethicus
Of these, the muskrat (O. zibethicus) is found throughout North America aside from the warmer or drier regions, and has been introduced to Eurasia. The round-tailed muskrat (N. alleni) is only found in Florida and adjacent Georgia, just outside of the range of O. zibethicus. Some authorities place both genera in different tribes (Ondatrini for Ondatra, Neofibrini for Neofiber), but the American Society of Mammalogists places both in Ondatrini, and some molecular evidence supports a close relation between both genera. Some phylogenetic evidence indicates that Balkan snow vole (Dinaromys bogdanovi) may also be a member of the Ondatrini, but this is uncertain and it is still classified in the Pliomyini by the ASM.


The southern flying squirrel is found in eastern deciduous forests or mixed forests of North America.  Large hickory and beech trees are more abundant in intensively used areas of their home ranges. Also, maple and poplar, as well as oak trees make favorable habitat.  Although southern flying squirrels may be present in heavily wooded suburban regions, they never occur in large numbers in these areas.
The size of the home range of southern flying squirrels varies greatly.  Average home range estimates are 2.45 hectares, 9.0 hectares, and 16.0 hectares  for adult males, 1.95 hectares, 3.9 hectares, and 7.2 hectares  for adult females, and 0.61 hectares for juveniles. Significant overlap exists among the home ranges. Near the northern limit of the southern flying squirrels distribution, home range increases in size as mast-producing trees become more dispersed. This trend is also observed in fragmented forests where nesting and foraging areas become widely spaced.
Home range is larger in males than females possibly to increase the chance of encountering potential mates. Although males have a larger home range, female home ranges have been shown to increase by as much as 70 percent following the departure of the offspring.
Number of nesting sites does not influence the total number of flying squirrels but may influence which sex will be present. Male home ranges contain more food as they have been associated with a higher than expected number of large red oaks and white oaks, whereas female home ranges contained lower food resources and more abundant nesting sites possibly to avoid contact with other squirrels while raising the young.
Southern flying squirrels nest in natural cavities and woodpecker holes, or build nest out of leaves and twigs. Leaf nests are used as a refuge or a resting site and are used primarily in summer, whereas cavities are used for breeding and more intensively during winter. Cavities used by southern flying squirrels are found in small snags, average 23.27 cm (9.16 in)  diameter at breast height, or large living trees, average 50.42 cm (19.85 in) dbh, with entrances that average 4.7 cm (1.9 in) in width by 9.4 cm (3.7 in) in height which are an average of 6.36 m (20.9 ft) above the ground.
Dens tend to be on the perimeter of the home range and situated away from clearings. To cross disturbances such as plantations and logged areas, southern flying squirrels prefer to use mature forest corridors over younger ones, suggesting that they are more sensitive to forest disturbances than previously believed.


Southern flying squirrels have grey brown fur on top with darker flanks, and are a cream color underneath. They have large dark eyes and a flattened tail. They have a furry membrane called a patagium that extends between the front and rear legs, and is used to glide through the air.  Total length (including tail) is 21–26 cm (8.3–10.2 in). The tail can be 8–12 cm (3.1–4.7 in).
Southern flying squirrels are nocturnal. They feed on fruit and nuts from trees such as red and white oak, hickory, and beech. They store food, especially acorns, for winter consumption. They also dine on insects, buds, mushrooms, mycorrhizal fungi, carrion, bird eggs and nestlings and flowers. Predators include snakes, owls, hawks and raccoons. Domestic cats can also be potential predators.
Both in the wild and in captivity, they can produce two litters each year (with 2–7 young per litter). The gestation period is approximately 40 days. Young are born without fur, or any capabilities of their own. Their ears open at 2 to 6 days old, and fur grows in by 7 days. Their eyes do not open until they are 24–30 days old. Mothers wean their young 65 days after they are born. The young then become fully independent at around 120 days of age.
Southern flying squirrels show substantial homing abilities, and can return to their nests if artificially removed to distances of up to a kilometre. Their home ranges may be up to 40,000 square metres for females and double that for males, tending to be larger at the northern extreme of their range.
Exposure to southern flying squirrels has been linked to cases of epidemic typhus in humans. Typhus spread by flying squirrels is known as "sylvatic typhus" and the Centers for Disease Control and Prevention has documented a total of 39 such cases in the U.S. from 1976 to 2001. The squirrel acts as host to the Rickettsia prowazekii bacteria and transmission to humans is hypothesised to occur via aerosolized feces of the fleas and lice associated with G. volans.


The southern flying squirrel or the assapan (Glaucomys volans) is one of three species of the genus Glaucomys and one of three flying squirrel species found in North America. It is found in deciduous and mixed woods in the eastern half of North America, from southeastern Canada to Florida. Disjunct populations of this species have been recorded in the highlands of Mexico, Guatemala, and Honduras.


Flying squirrels do not actually fly, but rather glide using a membrane called a patagium. From atop of trees, flying squirrels can initiate glides from a running start  or from a stationary position by bringing their limbs under the body, retracting their heads, and then propelling themselves off the tree. It is believed that they use triangulation to estimate the distance of the landing area as they often lean out and pivot from side to side before jumping. Once in the air, they form an "X" with their limbs by spreading their long arms forward and out and their long legs backward and out, causing their membrane to stretch into a square-like shape  and glide down at angles of 30 to 40 degrees. They maneuver with great efficiency in the air, making 90 degree turns around obstacles if needed. Just before reaching a tree, they raise their flattened tails that abruptly changes their trajectory upwards, and point all of their limbs forward to create a parachute effect with the membrane in order to reduce the shock of landing. The limbs absorb the remainder of the impact, and the squirrels immediately run to the other side of the trunk or to the top of the tree in order to avoid any potential predators. Although graceful in flight, they are very clumsy walkers and if they happen to be on the ground in the presence of danger, they will prefer to hide rather than attempt to escape.


Ensatina is a complex of plethodontid (lungless) salamanders found in coniferous forests, oak woodland and chaparral from British Columbia, through Washington, Oregon, across California (where all seven subspecies variations are located), all the way down to Baja California in Mexico. The genus Ensatina originated approximately 21.5 million years ago. It is usually considered as monospecific, being represented by a single species, Ensatina eschscholtzii, with several subspecies forming a ring species.


The Ensatina subspecies E. e. eschscholtzii, or Monterey ensatina, can be found in Santa Cruz, Monterey, and the California coastal mountains. They reach a total length of three to five inches, and can be identified primarily by the structure of the tail, and how it is narrower at the base. This salamander is the only type that has this tail structure and five toes on the back feet.
Males often have longer tails than the females, and many of the salamanders have lighter colored limbs in comparison to the rest of the body. The salamanders lay their eggs underground, often in threes, which then hatch directly into salamanders, skipping the usual aquatic phase.


The Asiatic toad or Chusan Island toad (Bufo gargarizans) is a species of toad endemic to East Asia. The species was previously classified as Bufo bufo gargarizans, a subspecies of the common toad.


It is common in China (specifically Anhui, Fujian, Gansu, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Inner Mongolia, Jiangsu, Jiangxi, Jilin, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, and Zhejiang) and portions of the Russian Far East (up north to the Amur River valley and on Sakhalin Island, and east to Transbaikalia in Siberia), but relatively rare on the Korean Peninsula. Asiatic toads are also found on the Miyako Islands of southern Japan, although they have been extirpated from some islands in recent years, possibly including Okinawa. The Miyako subspecies, Bufo gargarizans miyakonis, is also known as the Miyako toad.
The Asiatic toad avoids dense forests, but is found in most other habitats, including grasslands, open forests, meadows, and cultivated areas.  It prefers humid areas, and is seldom found at altitudes of more than 800 meters.


The red-spotted toad (Anaxyrus punctatus, formerly Bufo punctatus) is a toad in the family Bufonidae found in the southwestern United States and northwestern Mexico.


This toad is native to the southwestern United States and northwestern Mexico, especially Baja California. It occurs primarily along rocky streams and riverbeds, often in arid or semi-arid regions. It is very localized on the coastal slope, but widespread in the deserts. In dry areas it needs seasonal pools or even temporary rain puddles to use for breeding. Eggs hatch in three days and the tadpole can transform in 6–8 weeks, taking advantage of the ephemeral water bodies. It spends dry periods in burrows or beneath rocks or moist plant matter, and becomes suddenly active during rainfall when multitudes of individuals emerge.


It is a small toad species growing to 3.7 to 7.5 cm (1.5 to 3.0 in) in length. It has a flattened head and body, and a light grey, olive or reddish brown dorsum with reddish or orange skin glands. It has a whitish or buff venter with or without faint dark spotting, and round parotoid glands. The snout is pointed. The juvenile toad looks similar to the adult, but has more prominent ventral spotting and the undersides of its feet are yellow. The male red-spotted toad has a dusky throat and develops nuptial pads during the breeding season.
It may hybridize with the western toad (Anaxyrus boreas) in some locations, possibly with other toad species too. It is docile and easily handled with little or no skin gland secretions.


The Texas toad (Anaxyrus speciosus) is a species of medium-sized (to 9 cm (3.5 in)) toad that occurs in the southern United States and northern Mexico. It breeds in temporary water pools after heavy rains.


The Texas toad is native to the United States where it is found in the state of Texas (in 2009 it was designated as the Texas State Amphibian), its range also extends northward to Oklahoma, westward to New Mexico and southward to northern Mexico. It is a desert species and is found in dry grassland, savannahs with scattered mesquite and open woodland, usually on sandy or frequently inundated soils.


The alpine salamander (Salamandra atra) is a shiny black salamander found in the Alps from the Swiss-French border at the western end of its range   through Austria to the Dinaric Alps at the eastern end of its range, at altitudes above 700 m (2,300 ft). The western Alps (in France and Italy) are inhabited by a similar species, Lanza's alpine salamander (Salamandra lanzai), in only one small area. No differences in length are reported between the sexes (9–14 cm (3.5–5.5 in)) and the sex ratio is 1:1. Their life expectancy is at least 10 years. Unlike other salamanders, whose larvae are developed in water, the alpine salamander is a fully terrestrial species. Capture-recapture methods suggest that the species is very stationary; 12 m (39 ft) was the maximum observed distance travelled by one individual during the summer season. About 120 individuals per hectare were counted in most suitable areas with >2000 individuals/ha also observed, suggesting that this rather cryptic species is quite abundant.


Mating occurs on land, the male clasping the female at the forelegs, and fertilization is internal. S. atra is a viviparous amphibian, giving birth to two live young, or rarely three or four. They may measure as long as 50 mm (2.0 in) at birth, with the female measuring only 120 mm (4.7 in). The uterine eggs are large and numerous, but, as a rule, only one fully develops in each uterus, the embryo being nourished on the yolk of the other eggs, which more or less dissolve to form a large mass of nutrient matter. The embryo passes through three stages:
still enclosed within the egg and living on its own yolk
free, within the vitelline mass, which is directly swallowed by the mouth
with no more vitelline mass, the embryo is possessed of long external gills, which serve as an exchange of nutritive fluid through the maternal uterus, these gills functioning in the same way as the chorionic villi of the mammalian egg
Generally, at altitudes of 650-1,000 m above sea level, a pregnancy lasts two years, and at altitudes of 1,400-1,700 m, the pregnancy lasts around three years (1,140 days).


The Italian agile frog (Rana latastei), also known as Lataste's frog, is a species of frog in the family Ranidae (true frogs). The species is native to southern Europe.


R. latastei is a decidedly lowland species and rarely occurs above 400 m a. s. l., only going up to the lower foothills of mountains, where the colder climate affects larval development. The Italian agile frog inhabits oak and hornbeam-dominated plain woods, hygrophilous woods and riparian woods characterized by white poplar and white willow trees. This types of woods may regularly inundate. It has also been reported from open habitats like wet meadows or peat bogs.


Rana latastei may attain a head-body length of 7.5 cm (3.0 in). The throat is dark, with a light narrow central stripe.


Between late February and mid-April, males and females gather at breeding sites. Reproduction activities occurs in small permanent or temporal water bodies with extensive aquatic vegetation or submerged plant material, such as ponds, ditches or floodplain puddles. The minimum water temperature for egg deposition is reported as 2°C, and eggs hatch after 10 to 15 days. As with other European frogs of the genus, metamorphosis is completed after circa 3 months. Females leave the breeding site immediately after spawning, whereas males and juveniles remain there for up to 5 weeks.