Their breeding habitats are mature deciduous and mixed forests, especially sites with little undergrowth, across Canada and the eastern United States. For foraging, it prefers woodland with abundant undergrowth of shrubs; essentially, it thrives best in a mix of primary and secondary forest. Ovenbirds migrate to the southeastern United States, the Caribbean, and from Mexico to northern South America. The birds are territorial all year round, occurring either singly or (in the breeding season) as mated pairs, for a short time accompanied by their young. During migration, they tend to travel in larger groups however, dispersing again once they reach their destination.
In winter, they dwell mainly in lowlands, but may ascend up to 1,500 m (4,900 ft) ASL e.g. in Costa Rica. The first migrants leave in late August and appear on the wintering grounds as early as September, with successive waves arriving until late October or so. They depart again to breed between late March and early May, arriving on the breeding grounds throughout April and May. Migration times do not seem to have changed much over the course of the 20th century.
This bird seems just capable of crossing the Atlantic, as there have been a handful of records in Norway, Ireland and Great Britain. However, half of the six finds were of dead birds. A live ovenbird on St Mary's, Isles of Scilly in October 2004 was in bad condition, and died despite being taken into care.
Ovenbirds forage on the ground in dead leaves, sometimes hovering or catching insects in flight. This bird frequently tilts its tail up and bobs its head while walking; at rest, the tail may be flicked up and slowly lowered again, and alarmed birds flick the tail frequently from a half-raised position. These birds mainly eat terrestrial arthropods and snails, and also include fruit in their diet during winter.
The nest, referred to as the "oven" (which gives the bird its name), is a domed structure placed on the ground, woven from vegetation, and containing a side entrance. The female usually lays 4-5 eggs speckled with brown or gray. Only the female incubates, for 11-14 days. Young are altricial and are fed by both parents. First flight is at 8-11 days of age.
The placement of the nest on the ground makes predation by snakes, red squirrels, and chipmunks (Tamias) a greater concern than for tree-nesting birds. Chipmunks have been known to burrow directly into the nest to eat the young birds. The female can perform a distraction display, simulating a crippled bird, when a potential predator is in the vicinity of the nest.
The ovenbird is vulnerable to nest parasitism by the brown-headed cowbird (Molothrus ater), which is becoming more plentiful in some areas. However, the ovenbirds' numbers appear to be remaining stable. Altogether, it is not considered a threatened species by the IUCN.


Ovenbirds are large wood warblers and may sometimes be confused by the untrained for a thrush. Adults measure 11–16 cm (4.3–6.3 in) long and span 19–26 cm (7.5–10.2 in) across the wings. They weigh 19 g (0.67 oz) on average, with a range of 14–28.8 g (0.49–1.02 oz). Among standard measurements, the wing chord is 6.8 to 8.3 cm (2.7 to 3.3 in), the tail is 5 to 5.8 cm (2.0 to 2.3 in), the bill is 1.1 to 1.3 cm (0.43 to 0.51 in) and the tarsus is 2 to 2.3 cm (0.79 to 0.91 in). They tend to be heavier in winter and particularly at the start of their migration. They have olive-brown upperparts and white underparts heavily streaked with black; the flanks have an olive hue. A white ring surrounds the eyes, and a black stripe runs below the cheek. They have a line of orange feathers with olive-green tips running along the top of their head, bordered on each side with blackish-brown. The orange feathers can be erected to form a small crest. The eyes and the upper part of the thin pointed beak are dark, while the lower beak is horn-colored and the legs and feet are pinkish.
Males and females look alike. Immature birds have tawny fringes to the tertiary remiges and sometimes buff-tipped outer primary wing coverts. Most conspicuously, the olive-green tips of the crown feathers, which are hardly visible in adult birds, are far larger in extent in immatures and cover the orange crown-stripe almost or completely.
The main song of the ovenbird is a series of strident, relatively low-pitched, bisyallabic motives repeated without pause about eight times and increasing in volume. Usually, the second syllable in each motive is sharply accented: "chur-tee’ chur-tee’ chur-tee’ chur-tee’ chur-TEE chur-TEE chur-TEE!" Male ovenbirds utter a sweet chattering song in the air at twilight, after the manner of the skylark, incorporating portions of the main song into a jumble of sputtering notes and mimicry as they dive back to earth. The call is a variably pitched, sharp "chik!" Some variations recall the common call note of a downy woodpecker. If the bird is excited, it may repeat this call several times. The fight call is a high, rising siiii.


This is a small cormorant at 50–55 cm length and an 85 cm wingspan. It is mainly black, glossed green, in the breeding season. The wing coverts are silvery. It has a longish tail, a short head crest and a red or yellow face patch. The bill is yellow.
Sexes are similar, but non-breeding adults and juveniles are browner, with a white belly. Some southern races retain the crest all year round.


This is a common and widespread species, and is not considered to be threatened. It breeds on freshwater wetlands or quiet coasts.


The reed cormorant can dive to considerable depths, but usually feeds in shallow water. It frequently brings prey to the surface. It takes a wide variety of fish. It prefers small slow-moving fish, and those with long and tapering shapes, such as mormyrids, catfishes, and cichlids. It will less frequently eat soles (which can be important in its diet locally), frogs, aquatic invertebrates, and small birds.
Two to four eggs are laid in a nest in a tree or on the ground, normally hidden from view by long grass.


The collared aracari or collared araçari (Pteroglossus torquatus) is a toucan, a near-passerine bird. It breeds from southern Mexico (North America) to Panama; also Ecuador, Colombia, Venezuela and Costa Rica.


This species is primarily an arboreal fruit-eater, but will also take insects, lizards, eggs, and other small prey.


The collared aracari is a common resident breeder in lowland forests and slightly more open woodland. The 3 white eggs are laid in an unlined natural cavity or old woodpecker nest high in a tree.
Both sexes incubate the eggs for about 16 days, and the toucan chicks remain in the nest after hatching. They are blind and naked at birth, and have short bills and specialised pads on their heels to protect them from the rough floor of the nest. They are fed by both parents, assisted by up to three other adults, probably from a previous brood, and fledge after about 6 weeks, with feeding by the adults continuing for several weeks after leaving the nest.
The aracaris are unusual for toucans in that they roost socially throughout the year, up to six adults and fledged young sleeping in the same hole with tails folded over their backs.


Like other toucans, the collared aracari is brightly marked and has a large bill. The adult is typically 39–41 cm (15.5–16 in) long and weighs 190–275 g (6.7–9.7 oz) The sexes are alike in appearance, with a black head and chest and dark olive green upperparts, apart from a red rump and upper tail. There is reddish collar on the rear neck which gives rise to the English  and scientific (torquatus) names. The underparts are bright yellow, with a round black spot in the centre of the breast and a red-tinted black band across the belly. The thighs are chestnut.
The bare facial skin is black, becoming ruddy behind the yellow eye. The upper mandible of the bill is dull yellow, marked with a black saw-tooth pattern on the cutting edge, and a black tip. The lower mandible is black, and the legs are green.
Juvenile collared aracaris are much duller, with sooty-black head and brownish green upperparts. The red rump and yellow underparts are paler, and the breast spot, belly band and bill pattern are indistinct.
The call of the collared aracari is a loud, sharp pseek, or peeseek.


Boletus edulis (English: cep, penny bun, porcino or porcini) is a basidiomycete fungus, and the type species of the genus Boletus. Widely distributed in the Northern Hemisphere across Europe, Asia, and North America, it does not occur naturally in the Southern Hemisphere, although it has been introduced to southern Africa, Australia, New Zealand, and Brazil. Several closely related European mushrooms formerly thought to be varieties or forms of B. edulis have been shown using molecular phylogenetic analysis to be distinct species, and others previously classed as separate species are conspecific with this species. The western North American species commonly known as the California king bolete (Boletus edulis var. grandedulis) is a large, darker-coloured variant first formally identified in 2007.
The fungus grows in deciduous and coniferous forests and tree plantations, forming symbiotic ectomycorrhizal associations with living trees by enveloping the tree's underground roots with sheaths of fungal tissue. The fungus produces spore-bearing fruit bodies above ground in summer and autumn. The fruit body has a large brown cap which on occasion can reach 30 cm (12 in), rarely 40 cm (16 in) in diameter and 3 kg (6 lb 10 oz) in weight. Like other boletes, it has tubes extending downward from the underside of the cap, rather than gills; spores escape at maturity through the tube openings, or pores. The pore surface of the B. edulis fruit body is whitish when young, but ages to a greenish-yellow. The stout stipe, or stem, is white or yellowish in colour, up to 20 cm (8 in), rarely 30 cm (12 in) tall and 10 cm (4 in) thick, and partially covered with a raised network pattern, or reticulations.
Prized as an ingredient in various culinary dishes, B. edulis is an edible mushroom held in high regard in many cuisines, and is commonly prepared and eaten in soups, pasta, or risotto. The mushroom is low in fat and digestible carbohydrates, and high in protein, vitamins, minerals and dietary fibre. Although it is sold commercially, it is very difficult to cultivate. Available fresh in autumn throughout Europe and Russia, it is most often dried, packaged and distributed worldwide. It keeps its flavour after drying, and it is then reconstituted and used in cooking. B. edulis is one of the few fungi sold pickled.


Common names for B. edulis vary by region. The standard Italian name, porcino (pl. porcini), means porcine; fungo porcino, in Italian, echoes the term suilli, literally "hog mushrooms", a term used by the Ancient Romans and still in use in southern Italian terms for this species. The derivation has been ascribed to the resemblance of young fruit bodies to piglets, or to the fondness pigs have for eating them. It is also known as "king bolete". The English penny bun refers to its rounded brownish shape. The German name Steinpilz (stone mushroom) refers to the species' firm flesh. In Austria, it is called Herrenpilz, the "noble mushroom", while in Mexico, the Spanish name is panza, meaning "belly". Another Spanish name, rodellon, means "small round boulder", while the Dutch name eekhoorntjesbrood means "squirrel's bread". Russian names are belyy grib (ru:белый гриб; "white mushroom" as opposed to less valuable "black mushrooms") and borovik (ru:боровик; from bor—"pine forest").
The vernacular name cep is derived from the Catalan cep or its French name cèpe, although the latter is a generic term applying to several related species. In France, it is more fully cèpe de Bordeaux, derived from the Gascon cep "trunk" for its fat stalk, ultimately from the Latin cippus "stake". Ceppatello, ceppatello buono, ceppatello bianco, giallo leonato, ghezzo, and moreccio are names from Italian dialects, and ciurenys or surenys is another term in Catalan. The French-born King Charles XIV John popularised B. edulis in Sweden after 1818, and is honoured in the local vernacular name Karljohanssvamp, as well as the Danish name Karl Johan svamp. The monarch cultivated the fungus about his residence, Rosersberg Palace. The Finnish name is herkkutatti, herkku from herkullinen, which means delicious, and tatti, describing the type of mushroom.


The cap of this mushroom is 7–30 cm (3–12 in) broad at maturity. Slightly sticky to touch, it is convex in shape when young and flattens with age. The colour is generally reddish-brown fading to white in areas near the margin, and continues to darken as it matures. The stipe, or stem, is 8–25 cm (3–10 in) in height, and up to 7 cm (3 in) thick—rather large in comparison to the cap; it is club-shaped, or bulges out in the middle. It is finely reticulate on the upper portion, but smooth or irregularly ridged on the lower part. The under surface of the cap is made of thin tubes, the site of spore production; they are 1 to 2 cm (1⁄2 to 3⁄4 in) deep, and whitish in colour when young, but mature to a greenish-yellow. The angular pores, which do not stain when bruised, are small—roughly 2 to 3 pores per millimetre. In youth, the pores are white and appear as if stuffed with cotton (which are actually mycelia); as they age, they change colour to yellow and later to brown. The spore print is olive brown. The flesh of the fruit body is white, thick and firm when young, but becomes somewhat spongy with age. When bruised or cut, it either does not change colour, or turns a very light brown or light red. Fully mature specimens can weigh about 1 kg (2 lb 3 oz); a huge specimen collected on the Isle of Skye, Scotland, in 1995 bore a cap of 42 cm (16+1⁄2 in), with a stipe 18 cm (7 in) in height and 14 cm (5+1⁄2 in) wide, and weighed 3.2 kg (7 lb 1 oz). A similarly sized specimen found in Poland in 2013 made international news.
Boletus edulis is considered one of the safest wild mushrooms to pick for the table, as few poisonous species closely resemble it, and those that do may be easily distinguished by careful examination. The most similar poisonous mushroom may be the devil's bolete (Rubroboletus satanas), which has a similar shape, but has a red stem and stains blue on bruising. It is often confused with the very bitter and unpalatable Tylopilus felleus, but can be distinguished by the reticulation on the stalk; in porcini, it is a whitish, net-like pattern on a brownish stalk, whereas it is a dark pattern on white in the latter. Porcini have whitish pores while the other has pink. If in doubt, tasting a tiny bit of flesh will yield a bitter taste. It can also resemble the "bolete-like" Gyroporus castaneus, which is generally smaller, and has a browner stem. Boletus huronensis, an uncommon mushroom of northeastern North America, is another recognized look-alike known to cause severe gastrointestinal disorders.
The spores are elliptical to spindle-shaped, with dimensions of 12–17 by 5–7 µm. The basidia, the spore-bearing cells, are produced in a layer lining the tubes, and arrange themselves so their ends are facing the center of the tube; this layer of cells is known technically as a hymenium. The basidia are thin-walled, mostly attached to four spores, and measure 25–30 by 8–10 µm. Another cell type present in the hymenium is the cystidia, larger sterile cells that protrude beyond the basidia into the lumen of the hymenium, and act as air traps, regulating humidity. B. edulis has pleurocystidia (cystidia located on the face of a pore) that are thin-walled, roughly spindle-shaped to ventricose, and measure 30–45 by 7–10 µm; the "stuffed" feature of the hymenium is caused by cheilocystidia—cells found on the edges of the pores. The hyphae of B. edulis do not have clamp connections.


This species is found growing on fallen pieces of dead hardwood among mosses and leaf litter in damp habitats in winter and early spring. The fruiting body is cup-shaped with a scarlet smooth, shiny interior. The exterior is covered with a felted mass of short hairs in varying shades of white and pink and a stubby stem. The flesh is white and rubbery with a thin red layer lining the cup. The spore print is white and the spores are ellipsoidal with flattened ends and containing several oil droplets. On the outside of the cup the hairs are curly or corkscrew shaped. These features distinguishes this species from the rather similar Sarcoscypha coccinea and Sarcoscypha jurana It is reported to grow on the dead wood of such hosts as Alnus incana, species of Salix, Acer and Robinia. It is part of a complex of species which includes Sarcoscypha coccinea and Sarcoscypha dudleyi.
Sarcoscypha austriaca is generally considered inedible, but is considered edible by the Norwegian Association for Mycology and Foraging.


Although the fruit bodies of H. peckii have been described as resembling "Danish pastry topped with strawberry jam", and Hydnellum species in general are not known to be poisonous, they are not particularly edible due to their extremely bitter taste. This acridity persists even in dried specimens.
The fruit bodies of this and other Hydnellum species are prized by mushroom dyers. The colors may range from beige when no mordant is used, to various shades of blue or green depending on the mordant added.


Hydnellum peckii is a mycorrhizal fungus, and as such establishes a mutualistic relationship with the roots of certain trees (referred to as "hosts"), in which the fungus exchanges minerals and amino acids extracted from the soil for fixed carbon from the host. The subterranean hyphae of the fungus grow a sheath of tissue around the rootlets of a broad range of tree species, in an intimate association that is especially beneficial to the host (termed ectomycorrhizal), as the fungus produces enzymes that mineralize organic compounds and facilitate the transfer of nutrients to the tree.
The ectomycorrhizal structures of H. peckii are among a few in the Bankeraceae that have been studied in detail. They are characterized by a plectenchymatous mantle—a layer of tissue made of hyphae tightly arranged in a parallel orientation, or palisade, and which rarely branch or overlap each other. These hyphae, along with adhering mineral soil particles, are embedded in a gelatinous matrix. The hyphae of the ectomycorrhizae can become chlamydospores, an adaptation that helps the fungus tolerate unfavorable conditions. Chlamydospores of H. peckii have a peculiar structure—markedly distinct from those of other Bankeraceae—with thick, smooth inner walls and an outer wall that is split radially into warts. The most striking characteristic of the ectomycorrhizae as a whole is the way the black outer layers of older sections are shed, giving a "carbonized appearance". The majority of the underground biomass of the fungus is concentrated near the surface, most likely as "mycelial mats"—dense clusters of ectomycorrhizae and mycelium. The mycelium is also known to extend far beyond the site of the fruit bodies, as far as 337 centimeters (11+1⁄12 ft) away.
Molecular techniques have been developed to help with conservation efforts of stipitate hydnoid fungi, including H. peckii. While the distribution of the fungus has traditionally been determined by counting the fruit bodies, this method has a major drawback in that fruit bodies are not produced consistently every year, and the absence of fruit bodies is not an indication of the absence of its mycelium in the soil. More modern techniques using the polymerase chain reaction to assess the presence of the fungal DNA in the soil have helped alleviate the issues in monitoring the presence and distribution of fungi mycelia.


As in all mushroom-producing fungi, the fruit bodies (sporocarps) are the reproductive structures that are produced from fungal mycelium when the appropriate environmental conditions of temperature, humidity and nutrient availability are met. Hydnellum peckii is a stipitate hydnoid fungus, meaning that it has a cap atop a stipe (stem), and a form resembling a Hydnum—characterized by a teeth-like hymenium, rather than gills or pores on the underside of the cap. Fruit bodies growing closely together often appear to fuse together (this is called "confluence"). They can reach a height of up to 10.5 cm (4+1⁄8 in). Fresh fruit bodies exude a striking, thick red fluid when they are moist, present even in young specimens, which are lumplike in appearance.
The cap's surface is convex to flattened, more or less uneven and sometimes slightly depressed in the center. It is usually densely covered with "hairs" that give it a texture similar to felt or velvet; these hairs are sloughed off in age, leaving the caps of mature specimens smooth. Its shape varies from somewhat round to irregular, 4 to 10 cm (1+5⁄8 to 3+7⁄8 in), or even as much as 20 cm (7+7⁄8 in) wide as a result of confluence. The cap is initially whitish, but later turns slightly brownish, with irregular dark-brown to nearly black blotches where it is bruised. In maturity, the surface is fibrous and tough, scaly and jagged, grayish brown in the upper part of the cap, and somewhat woody. The flesh is a pale pinkish brown. The spore print is brown.
The spines are slender, cylindrical and tapering (terete), less than 5 mm (1⁄4 in) long, and become shorter closer to the cap edge. They are crowded together, with typically between three and five teeth per square millimeter. Pinkish white initially, they age to a grayish brown. The stem is thick, very short, and often deformed. It becomes bulbous where it penetrates the ground, and may root into the soil for several centimeters. Although it may reach up to 5 cm (2 in) in total length, and is 1 to 3 cm (3⁄8 to 1+1⁄8 in) wide, only about 0.1 to 1 cm (1⁄16 to 3⁄8 in) appear above ground. The upper part is covered with the same teeth found on the underside of the cap, whereas the lower part is hairy and often encases debris from the forest floor. The odor of the fruit body has been described as "mild to disagreeable", or, as Banker suggested in his original description, similar to hickory nuts.


Suillus spraguei is an edible mushroom. Its taste is not distinctive, and the odor has been described as "slightly fruity". It turns a blackish color when cooked, and some consider it choice, and "among the better edibles in the genus Suillus". In contrast, another source on mushrooms of Québec described the mushroom as a poor edible ("comestible médiocre"), and warned of a slightly acidic taste and disagreeable flavor. Michael Kuo's 2007 book 100 Edible Mushrooms rates the taste as mediocre, suggesting "its sluglike consistency has all the palatability of unflavored gelatin." The book recommends frying the thinly sliced mushroom in butter or oil until it acquires a crispy texture.


The cap of the fruit body is 3 to 12 cm (1.2 to 4.7 in) in diameter, and depending on its age, is either conic to convex, to somewhat flattened at maturity. The cap margin is initially rolled downward before straightening out, often with hanging remnants of partial veil (appendiculate). The cap surface is covered with densely matted filaments that are rough and scale-like. The scales are pink to brownish red, fading to a pale brown-gray or dull yellow in maturity. Under the scales, the cap surface is yellow to pale yellow-orange. While many other Suillus species have a sticky or slimy cap, S. spraguei is dry. The flesh is yellow.
The pores on the underside of the cap are yellowish and angular, measuring 0.5 to 5 mm (0.02 to 0.20 in) wide, and formed by tubes that extend 4 to 8 mm (0.2 to 0.3 in) deep. These pores have a slightly decurrent attachment to the stem (extending down its length). Young specimens have a whitish fibrous partial veil that protects the developing pores; as the cap expands it rips the veil, which remains as a grayish ring on the stem. The stem is 4 to 12 cm (1.6 to 4.7 in) long, and 1 to 2.5 cm (0.4 to 1.0 in) thick, roughly cylindrical in shape, or sometimes with a bulbous bottom so as to be somewhat club-shaped. The stem surface is tomentose, with scales at the top, and a ring on the upper half of the stem. Below the ring the stem is fibrillose, covered with a mat of soft hairs. Its color at the top is yellow, but with wine-red to reddish-brown scales below, underlaid with a pale yellow to grayish color. The stem is usually solid, rarely hollow. The tissue of all parts of the fruit body—cap, pores, and stem—will turn brownish shortly after being bruised or injured.
In deposit, such as with a spore print, the spores of S. spraguei appear olive-brown in color; this changes to clay or tawny-olive after drying. Microscopically, the spores have smooth surfaces, measuring 9–11 by 3–4.5 µm; in side profile they have asymmetrical sides and a suprahilar depression (a surface indentation formed where the spore attaches to the basidia), while in face view they appear oblong. The spores are not amyloid, meaning that they do not absorb iodine when stained with Melzer's reagent. The basidia (the spore-bearing cells in the hymenium) are thin-walled, four-spored, and have dimensions of 17–19 by 5–7.8 µm. In the presence of potassium hydroxide, they appear hyaline (translucent), and they become pale yellow to nearly hyaline in Melzer's reagent.
Various parts of the mushroom display characteristic color reactions to chemical tests commonly used in mushroom identification. The cap cuticle will turn a blackish color with the application of a drop of potassium hydroxide (KOH), iron sulfate (FeSO₄) solution, or ammonia solution. The mushroom flesh turns grayish-green to greenish black with a drop of FeSO₄, and olive to greenish black with KOH or NH₄OH.


S. spraguei is a popular edible among novice mushroom hunters as it is readily identifiable due to both its appearance and its association with white pine. This renders it unlikely to be confused with other species, but it shares similar characteristics with several other Suillus species. S. spraguei bears some resemblance to the rosy larch bolete (S. ochraceoroseus), but the latter species has a darker spore print, a thicker stem, and grows in association with larch. S. cavipes, another associate of larch trees, is more brownish and has a hollow stalk. S. lakei is less brightly colored than S. spraguei, has a shorter stalk, and usually grows with Douglas fir. S. decipiens has a less intensely red cap when young, but the color of older specimens fade and can resemble S. spraguei. S. decipiens generally has a smaller stature, with a cap ranging from 4 to 7 cm (1.6 to 2.8 in) in diameter, and stem that is typically 4–7 cm (1.6–2.8 in) long by 0.7–1.6 cm (0.3–0.6 in) thick. Further, its pores are irregular in shape, measuring 0.5–1 mm in diameter at maturity, and stain a shade of hazel rather than reddish to brownish. It is found in the southeastern United States, from New Jersey south to Florida and west to Texas.


The black-headed oriole (Oriolus larvatus) is a species of bird in the family Oriolidae. It is found in Africa and has a very striking appearance with a bright yellow body, contrasting black head and flesh-coloured beak.


The black-headed oriole forages in the canopy, feeding on small fruit as well as large insects. The young are fed mostly with caterpillars.


The diet of the speckled kingsnake consists of mammals, birds, rodents, frogs, lizards, and other snakes. It kills by constriction.


The speckled kingsnake is found in the central and southern United States from southern Iowa to the Gulf of Mexico. Its range overlaps that of the desert kingsnake, Lampropeltis getula splendida, and it is known to intergrade with that subspecies.


The speckled kingsnake usually grows up to 48 in (120 cm) in total length (including tail), but the record total length is 72 in (180 cm). The common name is derived from its pattern, which is black, with small yellow-white specks, one speck in the center of almost every dorsal scale. It is also known as the "salt-and-pepper snake".


The speckled kingsnake prefers wetter habitats than other kingsnakes, such as swamps and rivers, but it does commonly venture to dry areas such as woodlands and grassy fields.


Cemophora coccinea, commonly known as the scarlet snake, is a species of nonvenomous snake in the family Colubridae. The species is native to the southeastern United States. There are two subspecies of C. coccinea that are recognized as being valid. The Texas scarlet snake (C. lineri) was previously considered a subspecies.


The scarlet snake is nocturnal and is active only during the summer months. They can be found during the day beneath logs, under pine debris or other organic litter. At night they are often seen crossing roads, setting out to look for food. C. coccinea's  diet consists of lizards, small rodents, the  eggs of snakes lizards and turtles, and other snakes. Their large, very sharp posterior teeth are used to slash open large reptile eggs. The snake will either squeeze an egg to expel its contents or thrust its head into the egg to break it open. The smallest reptile eggs are eaten in their entirety.


C. coccinea is found only in the United States, in southeastern Texas, eastern Oklahoma, Arkansas, parts of Louisiana, Mississippi, Alabama, Georgia, Florida, South Carolina, North Carolina, Tennessee, Kentucky, Illinois, Indiana, Virginia, Maryland, and Delaware; with disjunct populations in New Jersey and central Missouri. The species is more commonly found throughout most of the Atlantic coastal plain areas. They prefer open forested areas with sandy soil, ground litter, and organic debris.
In Indiana, the scarlet snake is listed as an endangered species. In New Jersey, the scarlet snake has been recommended by the New Jersey Endangered and Nongame Advisory Committee that it be put on the threatened status for this species within the state, but no formal rule proposal has been filed to date. The Threatened status is largely due to population declines and habitat loss. Reasons for the decline in their population are a loss of habitat, illegal capture for the pet trade, road mortality, and direct killing.


The scarlet snake is relatively small, growing to a total length (including tail) of 14-26 inches (36–66 cm) at adult size. The dorsal pattern consists of a light gray ground color, with a series of black-bordered red, white or yellow blotches down the back. The belly is either a uniform light gray or white color. The dorsal blotches can extend down the sides of the body, appearing somewhat like banding or rings, which sometimes leads to confusion with other sympatric species such as the venomous coral snakes or the harmless scarlet king snake.


There is very little known about the reproductive habits of the scarlet snake. It is oviparous, generally laying 2-9 eggs per clutch, with the typical clutch yielding five eggs. Breeding occurs throughout the spring months, and eggs are laid throughout the summer in burrows or under rocks. The eggs hatch two months after breeding, typically in the late summer or autumn.


Suillus caerulescens is an edible species of bolete fungus in the family Suillaceae. It was first described scientifically by American mycologists Alexander H. Smith and Harry D. Thiers in 1964. It can be found growing with Douglas fir trees. Its stem bruises blue, which sometimes takes a few minutes.
The cap is yellowish to reddish brown, sometimes with streaks from its darker center. It ranges from 5–15 cm (2–6 in) in diameter, shaped convex to flat, and viscid when wet, sometimes with veil remnants on the edge. The flesh is yellowish, as are the pores. The stalk is yellowish to brown, darkening with age, 2–8 cm tall and 1–3 cm wide, and bruises bluish at the base; it sometimes has a faint ring.
While edible, it is considered of poor quality.
Suillus lakei is fairly similar.


Some Plateau Indian tribes used wolf lichen as a poultice for swelling, bruises, sores, and boils, and boiled it as a drink to stop bleeding.
The brightly colored fruiting bodies are popular in floral arrangements.


Letharia vulpina occurs throughout the Pacific Northwest. It is often abundant on exposed branches that have lost their bark. In old, moist forests, it is typically found in drier areas. This species has an intermediate air pollution sensitivity.  In the Rocky Mountains, Letharia species are found in ponderosa forests at the prairie-forest boundary at relatively low elevations though medium and high elevation Douglas fir and lodgepole pine forests.


The thallus, or vegetative body, has a fruticose shape — that is, shrubby and densely branched — and a bright yellow to yellow-green, or chartreuse color, although the color will fade in drier specimens. Its dimensions are typically 2 to 7 cm (0.8 to 3 in) in diameter. The vegetative reproductive structures soredia and isidia are present on the surface of the thalli, often abundantly.


Writing about life in Victorian Cambridge, Gwen Raverat (granddaughter of Charles Darwin) describes the 'sport' of stinkhorn hunting:
In our native woods there grows a kind of toadstool, called in the vernacular The Stinkhorn, though in Latin it bears a grosser name. The name is justified, for the fungus can be hunted by the scent alone; and this was Aunt Etty's great invention. Armed with a basket and a pointed stick, and wearing special hunting cloak and gloves, she would sniff her way round the wood, pausing here and there, her nostrils twitching, when she caught a whiff of her prey; then at last, with a deadly pounce, she would fall upon her victim, and poke his putrid carcass into her basket. At the end of the day's sport, the catch was brought back and burnt in the deepest secrecy on the drawing-room fire, with the door locked; because of the morals of the maids.

In Thomas Mann's novel The Magic Mountain (Der Zauberberg), the psychologist Dr. Krokowski gives a lecture on the phallus impudicus:
 And Dr. Krokowski had spoken about one fungus, famous since classical antiquity for its form and the powers ascribed to it -- a morel, its Latin name ending in the adjective impudicus, its form reminiscent of love, and its odor, of death. For the stench given off by the impudicus was strikingly like that of a decaying corpse, the odor coming from greenish, viscous slime that carried its spores and dripped from the bell-shaped cap. And even today, among the uneducated, this morel was thought to be an aphrodisiac.
In Danilo Kiš's novel Garden, Ashes the protagonist's father Eduard Schaum provokes the suspicions of the local residents and authorities through his mad wandering and sermonizing in the forests:
The story went round, and was preached from the pulpit, that his iron-tipped cane possessed magical powers, that trees withered like grass whenever he walked in the Count's forest, that his spit produced poisonous mushrooms --Ithyphalus impudicus--that grew under the guise of edible, cultivated varieties.


At the egg stage, pieces of the inner layer (the receptaculum) can be cut out with a knife and eaten raw. They are crisp and crunchy with an attractive radishy taste. The fungus is enjoyed and eaten in France and parts of Germany, where it may be sold fresh or pickled and used in sausages. Similar species are consumed in China.


Venous thrombosis, the formation of a blood clot in a vein, is a common cause of death in breast cancer patients; patients with recurrent disease are typically maintained on anticoagulants for their lifetimes. A research study has suggested that extracts from P. impudicus can reduce the risk of this condition by reducing the incidence of platelet aggregation, and may have potential as a supportive preventive nutrition. It was used in medieval times as a cure for gout and as a love potion.


The common stinkhorn can be found throughout much of Europe and North America, and it has also been collected in Asia (including China, Taiwan, and India), Costa Rica, Iceland, Tanzania, and southeast Australia. In North America, it is most common west of the Mississippi River; Ravenel's stinkhorn (Phallus ravenelii) is more common to the east. The fungus is associated with rotting wood, and as such it is most commonly encountered in deciduous woods where it fruits from summer to late autumn, though it may also be found in conifer woods or even grassy areas such as parks and gardens. It may also form mycorrhizal associations with certain trees.


Sometimes called the witch's egg, the immature stinkhorn is whitish or pinkish, egg-shaped, and typically 4 to 6 cm (1.6 to 2.4 in) by 3 to 5 cm (1.2 to 2.0 in).
On the outside is a thick whitish volva, also known as the peridium, covering the olive-colored gelatinous gleba. It is the latter that contains the spores and later stinks and attracts the flies; within this layer is a green layer which will become the 'head' of the expanded fruit body; and inside this is a white structure called the receptaculum (the stalk when expanded), that is hard, but has an airy structure like a sponge. The eggs become fully grown stinkhorns very rapidly, over a day or two. The mature stinkhorn is 10 to 30 cm (3.9 to 11.8 in) tall and 4 to 5 cm (1.6 to 2.0 in) in diameter, topped with a conical cap 2 to 4 cm (0.8 to 1.6 in) high that is covered with the greenish-brown slimy gleba. In older fungi the slime is eventually removed, exposing a bare yellowish pitted and ridged (reticulate) surface. This has a passing resemblance to the common morel (Morchella esculenta), for which it is sometimes mistaken. The rate of growth of Phallus impudicus has been measured at 10–15 cm (4–6 in) per hour. The growing fruit body is able to exert up to 1.33 kPa of pressure — a force sufficient to push up through asphalt. The spores have an elliptical to oblong shape, with dimensions of 3–5 to 1.5–2.5 µm.


The dispersal of spores is different from most "typical" mushrooms that spread their spores through the air. Stinkhorns instead produce a sticky spore mass on their tip which has a sharp, sickly-sweet odor of carrion to attract flies and other insects. Odorous chemicals in the gleba include methanethiol, hydrogen sulfide, linalool, trans-ocimene, phenylacetaldehyde, dimethyl sulfide, and dimethyl trisulfide. The latter compound has been found to be emitted from fungating cancerous wounds. The mature fruiting bodies can be smelled from a considerable distance in the woods, and at close quarters most people find the cloying stink extremely repulsive. The flies land in the gleba and in doing so collect the spore mass on their legs and carry it to other locations. An Austrian study demonstrated that blow-flies (species Calliphora vicina, Lucilia caesar, Lucilia ampullacea and Dryomyza anilis) also feed on the slime, and soon after leaving the fruit body, they deposit liquid feces that contain a dense suspension of spores. The study also showed that beetles (Oeceoptoma thoracica and Meligethes viridescens) are attracted to the fungus, but seem to have less of a role in spore dispersal as they tend to feed on the hyphal tissue of the fruiting body.
There is also a possible ecological association between the P. impudicus and badger (Meles meles) setts. Fruiting bodies are commonly clustered in a zone 24 to 39 metres (79 to 128 ft) from the entrances; the setts typically harbor a regularly-available supply of badger cadavers – the mortality rate of cubs is high, and death is more likely to occur within the sett. The fruiting of large numbers of stinkhorns attracts a high population of blowflies (Calliphora and Lucilla breed on carrion); this ensures the rapid elimination of badger carcasses, removing a potential source of disease to the badger colony. The laxative effect of the gleba reduces the distance from the fruiting body to where the spores are deposited, ensuring the continued production of high densities of stinkhorns.


A. gularis is found in New Mexico, Oklahoma, and Texas, and in the Mexican states of Aguascalientes, Campeche, Coahuila, Guanajuato, Hidalgo, Jalisco, Michoacán, Nuevo León, Querétaro, San Luis Potosí, Tamaulipas, and Veracruz.


The Texas spotted whiptail grows to 6.5 to 11 inches (17 to 28 cm) in total length (including tail). It is typically a tan brown or green-brown in color, with a pattern of seven distinct grey or white stripes that run the length of the body, and stop at the tail, with light colored spots along the sides. The underside is uniformly white in color. Males often have a red-colored throat, blue belly, and black or blue patches on the chest, while females have only a pink-colored throat. The tail is long compared to the body, usually close to three times the body length. The tail is usually a uniform peach or tan color.


A. gularis is diurnal and insectivorous. It is highly active and found in a wide variety of habitats, from grassland and semi-arid regions, to canyons and rocky terrain, typically not far from a permanent water source.


Breeding of sexually mature A. gularis occurs in the spring, and a clutch of 1-5 eggs is laid in the early summer.


Crevice spiny lizards are insectivorous, consuming a wide variety of spiders, beetles, and other insects, but they will sometimes also consume tender vegetation.


In the United States, Sceloporus poinsettii occurs in the Chihuahua Desert and Edwards Plateau regions of Texas and New Mexico. In Mexico it occurs in the border states from the Sierra Madre Occidental of Sonora, eastward through Chihuahua, Coahuila, and Nuevo Leon. Southward its distribution is less well established, although it is known to occur throughout of the state of Durango, parts of Zacatecas, with additional records from San Luis Potosi in the southeast, and the Pacifica slopes of the Sierra Madre Occidental of northern Jalisco in the southwest.


The crevice spiny lizard is typically grey in color, but sometimes can have a ruddy red-brown appearance with a black and white collar around the neck region. The underside is typically light grey, but males often have blue patches on either side of their bellies. The tail typically has black banding. Their scales have a distinctly spiny texture. They can grow to 11.8 cm (4.6 in) snout-to-vent length, and 31.1 cm (12.2 inches) total length.


Sceloporus poinsettii is one of the several species of Sceloporus that are ovoviviparous. Breeding occurs in the spring, and a litter of up to 11 young are born in midsummer.


Although venomous, eastern copperheads are generally not aggressive and bites are rarely fatal. Copperhead venom has an estimated lethal dose around 100 mg, and tests on mice show its potency is among the lowest of all pit vipers, and slightly weaker than that of its close relative, the cottonmouth. Copperheads often employ a "warning bite" when stepped on or agitated and inject a relatively small amount of venom, if any at all. "Dry bites" involving no venom are particularly common with the copperhead, though all pit vipers are capable of a dry bite. Pit vipers that are dead are still dangerous and capable of producing venom in amounts that necessitate the use of antivenom.
Bite symptoms include extreme pain, tingling, throbbing, swelling, and severe nausea. Damage can occur to muscle and bone tissue, especially when the bite occurs in the outer extremities such as the hands and feet, areas in which a large muscle mass is not available to absorb the venom. A bite from any venomous snake should be taken very seriously and immediate medical attention sought, as an allergic reaction and secondary infection are always possible.
The venom of the southern copperhead has been found to hold a protein called "contortrostatin" that halts the growth of cancer cells in mice and also stops the migration of the tumors to other sites.  However, this is an animal model, and further testing is required to verify safety and efficacy in humans.
The antivenom CroFab is used to treat copperhead envenomations that demonstrate localized or systemic reactions to the venom.  As many copperhead bites can be dry (no envenomation), CroFab is not given in the absence of a reaction (such as swelling) due to the risk of complications of an allergic reaction to the treatment. The antivenom can cause an immune reaction called serum sickness. Pain management, tetanus immunization, laboratory evaluation, and medical supervision in the case of complications are additional courses of action. In 2002, an Illinois poison control center report on the availability of antivenom stated it used 1 Acp to 5 Acp depending on the symptoms and circumstances.


The eastern copperhead is a diet generalist and is known to feed on a wide variety of prey, including invertebrates (primarily arthropods) and vertebrates. A generalized ontogenetic shift in the diet occurs, with juveniles feeding on higher percentages of invertebrates and ectotherms, and adults feeding on a higher percentage vertebrate endotherms. Both juveniles and adults, though, feed on invertebrates and vertebrates opportunistically. The diet is also known to vary among geographic populations.
Studies conducted at various locations within the range of the eastern copperhead (A. contortrix), including Tennessee, Kentucky, Kansas, and Texas, identified some consistently significant prey items included cicadas (Tibicen), caterpillars (Lepidoptera), lizards (Sceloporus and Scincella), voles (Microtus), and mice (Peromyscus). Accounts of finding large numbers of copperheads in bushes, vines, and trees seeking newly emerged cicadas, some as high as 40 feet above ground, have been reported from Texas by various herpetologists.
Other items documented in the diet include various invertebrates, e.g. millipedes (Diplopoda), spiders (Arachnida), beetles (Coleoptera), dragonflies (Odonata), grasshoppers (Orthoptera), and mantids (Mantidae), as well as numerous species of vertebrates, including salamanders, frogs, lizards, snakes, small turtles, small birds, young opossums, squirrels, chipmunks, rabbits, bats, shrews, moles, rats, and mice.
Like most pit vipers, the eastern copperhead is generally an ambush predator; it takes up a promising position and waits for suitable prey to arrive. One exception to ambush foraging occurs when copperheads feed on insects such as caterpillars and freshly molted cicadas. When hunting insects, copperheads actively pursue their prey. Juveniles use a brightly colored tail to attract frogs and perhaps lizards, a behavior termed caudal luring (see video: ). Sight, odor, and heat detection are used in locating prey, although after the prey has been envenomated, odor and taste become the primary means of tracking. Smaller prey items and birds are often seized and held in the mouth until dead, while larger prey items are typically bitten, released, and then tracked until dead. Copperheads occasionally feed on carrion. Gravid females typically fast, although some individuals occasionally take small volumes of food. An individual may eat up to twice its body mass in a year. One study found an individual that ate eight times during an annual activity period, totaling 1.25 times its body mass.


Eastern copperheads found in North America; its range within the United States is in Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, Missouri, Nebraska, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, and West Virginia. In Mexico, it occurs in Chihuahua and Coahuila. The type locality is "Carolina".  Schmidt (1953) proposed the type locality be restricted to "Charleston, South Carolina".
Unlike some other species of North American pit vipers, such as the timber rattlesnake and massasauga, the copperhead has mostly not re-established itself north of the terminal moraine after the last glacial period (the Wisconsin glaciation), though it is found in southeastern New York and southern New England,  north of the Wisconsin glaciation terminal moraine on Long Island.
Within its range, it occupies a variety of different habitats. In most of North America, it favors deciduous forest and mixed woodlands. It is often associated with rock outcroppings and ledges, but is also found in low-lying, swampy regions. During the winter, it hibernates in dens or limestone crevices, often together with timber rattlesnakes and black rat snakes. In the states around the Gulf of Mexico, however, this species is also found in coniferous forest. In the Chihuahuan Desert of West Texas and northern Mexico, it occurs in riparian habitats, usually near permanent or semipermanent water and sometimes in dry arroyos (brooks).


The eastern copperhead (Agkistrodon contortrix), also known as the copperhead, is a species of venomous snake, a pit viper, endemic to eastern North America; it is a member of the subfamily Crotalinae in the family Viperidae.
The eastern copperhead has distinctive, dark brown, hourglass-shaped markings, overlaid on a light reddish brown or brown/gray background. The body type is heavy, rather than slender. Neonates are born with green or yellow tail tips, which progress to a darker brown or black within one year. Adults grow to a typical length (including tail) of 50–95 cm (20–37 in).
In most of North America, it favors deciduous forest and mixed woodlands. It may occupy rock outcroppings and ledges, but is also found in low-lying, swampy regions. During the winter, it hibernates in dens or limestone crevices, often together with timber rattlesnakes and black rat snakes. The eastern copperhead is known to feed on a wide variety of prey, including invertebrates (primarily arthropods) and vertebrates. Like most pit vipers, the eastern copperhead is generally an ambush predator; it takes up a promising position and waits for suitable prey to arrive.
As a common species within its range, it may be encountered by humans. Unlike other viperids, they often "freeze" instead of slithering away, due to its habit of relying on excellent camouflage, rather than fleeing. Bites occur due to people unknowingly stepping on or near them.
Five subspecies have been recognized in the past, but recent genetic analysis had yielded new species information.


About 70% of the Texas horned lizard's diet is made up of harvester ants, though they supplement these with termites, beetles, and grasshoppers. Texas horned lizards possess a blood plasma factor that neutralizes harvester ant venom and are known to produce copious amounts of mucus in the esophagus and pharynx which function to embed and incapacitate swallowed ants. In recent years, the species has declined by about 30% of its range, though it may be making a comeback. The decline is usually blamed on overuse of pesticides and the spread of nonnative, highly aggressive and fiercely territorial red imported fire ants. Both eradicate harvester ant colonies, destroying the lizard's principal source of food. The Texas horned lizard is now a protected species, and, in Texas, it is illegal to take, possess, transport or sell them without a special permit.
A University of Texas publication notes that horned lizard populations continue to disappear throughout the southwest despite protective legislation. The Texas horned lizard has disappeared from almost half of its geographic range. Population declines are attributed to loss of habitat, human eradication of the ant populations upon which the lizards prey, displacement of native ant populations by invading fire ants (aided by synergistic effects of native ant eradication), and predation by domestic dogs and cats.
In 2014, the Center for Biological Diversity in Tucson, Arizona petitioned the Oklahoma Department of Wildlife Conservation to have the Texas horned lizard put on the endangered species list due to the massive declines of its population in Oklahoma, where it was once plentiful. The Center said it may later seek protection for the animal on a Federal level; it also said that reptiles in general are dying off at up to 10,000 times their historic extinction rate, greatly due to human influences.
In Texas, the creature has been declared threatened and a breeding and reintroduction program has been started by the Fort Worth Zoo. Hatchlings are bred and released in targeted areas in the hope that with a large number of animals, enough will survive to grow the population in the wild. Typically in such reptile reintroduction programs, fewer than one percent of a female's offspring will survive in the wild to adulthood.


The Texas horned lizard (Phrynosoma cornutum) is one of about 14 North American species of spikey-bodied reptiles called horned lizards, all belonging the genus Phrynosoma. P. cornutum ranges from Colorado and Kansas to northern Mexico (in the Sonoran desert), and from southeastern Arizona to Texas. Also, isolated introduced populations are found in the Carolinas, Georgia, and Florida. Most records of the Texas horned lizard (Phrynosoma cornutum) from the Piney Woods region of east Texas, Louisiana, and Arkansas are from the early and mid-twentieth century, a time when horned lizard were popular pets, and are thought to represent released or escaped pets and not the species natural range. Though some populations are stable, severe population declines have occurred in many areas of Texas and Oklahoma. The Texas spiny lizard (Sceloporus olivaceus) may be confused for a Texas horned lizard due to its appearance and overlapping habitat.


The Texas horned lizard is the largest-bodied and most widely distributed of the roughly 14 species of horned lizards in the western United States and Mexico. The Texas horned lizard exhibits sexual dimorphism, with the females being larger with a snout-vent length of around 5 in, whereas the males reach around 3.7 in. "Phrynosoma cornutum" has characteristic horns spanning across its body with the two largest crowning its head, two more on its brows and jawline respectively, as well as lines of spikes spanning the lateral parts of torso and dorsal ridges of the back. Coloration varies depending on the environment in order to blend in with the color of the ground, ranging from a yellow or reddish-brown for deserts to a tannish brown for prairies. They also
have dark lines that span from the eyes to the tip of the horns and a characteristic solid white line with a few black circular splotches on either side.


The marine iguana forages almost exclusively on red and green algae in the inter- and subtidal zones. At least 10 genera of algae are regularly consumed, including the red algae Centroceras, Gelidium, Grateloupia, Hypnea, Polysiphonia and Pterocladiella. In some populations the green algae Ulva dominates the diet. The algal diet varies depending on algal abundance, individual preferences, foraging behaviour, season and exact island of feeding. Some species with chemical deterrents, such as Bifurcaria, Laurencia and Ochtodes, are actively avoided, but otherwise algal food choice mainly depends on energy content and digestibility. On Santa Cruz Island, 4–5 red algal species are the food of choice. During neap low tides, however, the usually avoided green algae Ulva lobata is eaten more often since the preferred red algae is not easily available. Brown algae have occasionally also been recorded in their diet, but marine iguanas are unable to easily digest these and will starve if it is the only type present. A 1 kg (2.2 lb) marine iguana typically eats about 8.6 g (0.30 oz) dry weight or 37.4 g (1.32 oz) fresh weight of algae per day. At Punta Espinoza on northeastern Fernandina Island it has been estimated that the almost 1,900 marine iguanas eat about 27–29 tonnes (fresh weight) of algae per year, a rate of consumption that is counterbalanced by the very high growth rate of the algae. They may feed on crustaceans, insects, and sea lion feces and afterbirth on rare occasions. The population on North Seymour Island will supplement their diet with land plants, primarily Batis maritima, or other coastal succulents like Sesuvium portulacastrum. These North Seymour iguanas have a higher survival rate during periods where their normal algal food is reduced. However, the hindgut of marine iguanas is specially adapted to algae feeding, likely restricting the possibility of efficiently switching to other plant types. The algae are digested with the help of endosymbiotic bacteria in their gut.
In the first months after hatching, the juveniles mainly feed on feces from larger marine iguanas, gaining the bacteria needed for digesting algae. It has been suggested that young iguanas up to about two years old are unable to swim, but studies have shown that even newly hatched marine iguanas are good swimmers; they just strongly try to avoid entering the water. At about 1–2 years old the young may voluntarily swim in shallow water and tide pools, but they do not dive.
Marine iguanas can dive as deep as 30 m (98 ft), and can spend up to one hour underwater. When diving to 7 m (23 ft) or deeper, they regularly remain submerged from 15 to more than 30 minutes. Most dives are much shorter in duration and shallower than 5 m (16 ft). Individuals foraging near-shore, often less than 1 m (3.3 ft) deep, typically only spend about 3 minutes underwater. Only 5% of marine iguanas dive for algae offshore and these individuals are the large males. The minimum size of these divers vary with island and subspecies, ranging from 0.6 kg (1.3 lb) on Genovesa Island (A. c. nanus) to 3 kg (6.6 lb) on Fernandina Island (A. c. cristatus). They are slow swimmers, averaging just 0.45 metres per second (1.5 ft/s). The highest recorded speed is only about twice that figure and this can typically only be sustained in bursts that last less than a minute. Most females and smaller males feed on exposed algae in the intertidal zone during low tide, retreating once the water returns and starts washing over them. They often scurry back-and-forth repeatedly, running to a patch of algae to take a few bites and then return fast to higher ground to avoid incoming waves. The separation in feeding behavior is advantageous because the large offshore feeding males experience less competition for food from smaller males and females. A few individuals of intermediate size may use both feeding strategies. In general, each marine iguana has a specific feeding site it returns to day after day. Most feed daily, but large offshore feeding males often only every second or third day. During bad weather with high waves marine iguanas do not feed, sometimes for more than a week. Large males often do not feed for several weeks when maintaining a breeding territory, resulting in them losing up to about one-quarter of their weight. It takes many months for them to return to their original weight. In captivity, individuals have remained strong and active even after fasting for as much as 100 days.
Foraging behavior changes in accordance to the seasons and foraging efficiency increases with temperature.  These environmental changes and the ensuing occasional food unavailability have caused marine iguanas to evolve by acquiring efficient methods of foraging in order to maximize their energy intake and body size. During an El Niño cycle in which food diminished for two years, some were found to decrease their length by as much as 20%.  When food supply returned to normal, iguana size followed suit.  It is speculated that the bones of the iguana actually shorten as shrinkage of connective tissue could only account for a 10% change in length.
Marine iguanas have several adaptions that aid their feeding. Their flattened tail is the primary means of propulsion in the water. When on the surface, they may use their legs for maintaining balance. Although their partially webbed feet often are mentioned, this webbing is very marginal and no greater in extent than in the green iguana, a species that also shares the flattened tail. Marine iguanas have powerful limbs with long, sharp claws for climbing, holding onto rocks and pulling themselves forward when at the sea bottom (adding to the propulsion provided by the tail). They are buoyant and float to the ocean surface if they are not actively swimming or holding on to rocks underwater. However, they have unusually compact (osteosclerose) limb bones compared to the land iguana, especially those from the front limbs, providing ballast to help with diving.
Other adaptions in marine iguanas are blunt heads ("flat noses") and sharp teeth allowing them to easier graze algae off rocks. Together with a few Ctenosaurus species, it is the only iguana that never has more than three tips (tricuspid) on each tooth. Uniquely, the side-tips on the marine iguana's teeth are quite large, only somewhat smaller than the central tip. It also appears to replace its teeth at a higher rate than other iguanas. As a sea reptile, much salt is ingested. The salt is filtered from their blood and then excreted by specialised cranial exocrine glands at the nostrils, expelled from the body in a process much like sneezing. The marine iguana's cranium has an unusually large nasal cavity compared to other iguanas, which is necessary to accommodate the large salt glands. The head may appear white from encrusted salt.


Marine iguanas typically range from 12 to 56 cm (4.7–22.0 in) in snout-to-vent length and have a tail length from 17 to 84 cm (6.7–33.1 in). There are major geographical differences, as iguanas from large islands tend to grow relatively large as adults, while those from small islands are smaller in size. In one study, the average snout-to-vent length on Wolf and Darwin Islands (subspecies jeffreysi) was about 19 cm (7.5 in), and those on Genovesa Island (subspecies nanus) were only slightly larger. In comparison, Santa Cruz marine iguanas (hassi) had an average snout-to-vent length of about 35 cm (14 in), and those of Isabela and Fernandina (cristatus) were only slightly smaller. Other subspecies were of intermediate size, in between the small Wolf, Darwin and Genovesa iguanas and the large Santa Cruz, Isabela and Fernandina iguanas. In another study, the largest were from western San Cristóbal Island (mertensi), followed by those from Isabela (cristatus, in part), Floreana (venustissimus, in part), eastern San Cristóbal (godzilla), Fernandina (cristatus, in part) and Santa Cruz (hassi). The smallest by far were from Genovesa (nanus), but this study did not include any marine iguanas from Wolf and Darwin Islands. The remaining island populations were of intermediate size.
The maximum weight of adult males ranges from 12 kg (26 lb) on southern Isabela to 1 kg (2.2 lb) on Genovesa. This difference in body size of marine iguanas between islands is due to the amount of food available, which depends on sea temperature and algae growth.
Marine iguanas are sexually dimorphic with adult males on average being significantly longer and weighing about twice as much as adult females. Additionally, males have broader heads and larger tubercles than females. However, the largest females are only about 20–40% shorter than the largest males. There is a correlation between longevity and body size, particularly for adult males. Large body size in males is selected sexually, but can be detrimental during El Niño events when resources are scarce. This results in large males suffering higher mortality than females and smaller adult males. The mortality rates of marine iguanas are explained through the size difference between the sexes.


The marine iguana (Amblyrhynchus cristatus), also known as the sea iguana, saltwater iguana, or Galápagos marine iguana, is a species of iguana found only on the Galápagos Islands (Ecuador). Unique among modern lizards, it is a marine reptile that has the ability to forage in the sea for algae, which makes up almost all of its diet. Marine iguanas are the only extant lizard that spends time in a marine environment. Large males are able to dive to find this food source, while females and smaller males feed during low tide in the intertidal zone. They mainly live in colonies on rocky shores where they bask after visiting the relatively cold water or intertidal zone, but can also be seen in marshes, mangrove swamps and beaches. Large males defend territories for a short period, but smaller males have other breeding strategies. After mating, the female digs a nest hole in the soil where she lays her eggs, leaving them to hatch on their own a few months later.
Marine iguanas vary in appearance between the different islands and several subspecies are recognized. Although relatively large numbers remain and it is locally abundant, this protected species is considered threatened, primarily from El Niño cycles, introduced predators and chance events like oil spills.


Female marine iguanas reach sexual maturity at the age of 3–5 years, while males reach sexual maturity at the age of 6–8 years. Sexual maturity is marked by the first steep and abrupt decline in bone growth cycle thickness. Marine iguanas can reach an age of up to 60 years, but average is 12 years or less.
Reproduction in the marine iguana begins during the last part of the cold and dry season, with breeding from December to March and nesting from January to April. The exact timing varies with location, depending on algal growth and the nutrient-rich Cromwell Current. It occurs earliest on islands like Fernandina, Isabela, Santa Fé and Genovesa, and latest on islands like Española. An adult marine iguana, whether male or female, will typically breed every other year, but if there is plenty of food a female may breed each year.
Marine iguanas live in coastal colonies that typically range from 20 to 500 animals, but sometimes more than 1,000. Their bodies often touch each other, but there are no social interactions like grooming, as commonly seen in social mammals and birds. Females are always highly gregarious and males are gregarious outside the breeding season. However, large males defend territories for up to three months during the breeding season, and in this period they sometimes fight other males. A territory can be up to almost 40 m² (430 sq ft), but is usually less than half that size, and can be as small as 1 m² (11 sq ft). A territory is often delimited by geographic features, like boulders or crevices. The territories tend to occur in clusters with several located adjacent to each other, forming a lek, but they can occur singly. Medium-sized males roam areas near the territories of large males or walk along beaches looking for females, while small "sneaky" males may enter the territories of large males. To threaten another male, a male will bob his head, walk on stiff legs, raise the spiny crest along the back and open the mouth to reveal the reddish interior. In most cases the suitor will turn away, but if he responds with the same behavior a fight ensues. During fights they typically do not bite each other, instead thrusting their heads together in an attempt to push the other away. The bony plates on the top of their heads are especially suited for interlocking. Fights between males may last for hours, and are often interrupted by periodic breaks. Once a winner has been established through the headbutting, the loser assumes a submissive position and retreats. In general fights between males are harmless and highly ritualized, but on occasion they will bite and injure each other.
Males are primarily selected by females on the basis of their body size. Females display a stronger preference for mating with bigger males. It is precisely because of body size that reproductive performance increases and "is mediated by higher survival of larger hatchlings from larger females and increased mating success of larger males." Other factors involved in the female's choice of partner are the display frequency by a male (especially head-bobbing) and the quality of a male's territory. Females prefer male territories that include or are near their own resting places, which they choose based on proximity to the sea, access to shade, low midday temperature and the possibility of sunbathing in the afternoon. Males with territories that are near the center of the lek tend to have a greater mating success than males with peripheral territories, but the size of a territory does not affect mating success. Large territorial males that frequently display also emit higher levels of certain acidic compounds (including 11-Eicosenoic acid) from their femoral pores, which may function as pheromones that enhance their chance of attracting females. Females can move freely between different territories, but receive less harassment from opportunistic non-territorial males when inside another male's territory. Medium-sized males attempt to mate by force and small males by stealth and force, but they have a low mating success rate compared to the large males that maintain a territory. During courtship display, a territorial male nods at the female, may open his mouth, and performs a slow sideways walk towards her. If she accepts, the male will mount her while holding her by the neck. A mating lasts no more than 20 minutes, typically 3 to 4 minutes, but it is comparatively rapid in the small "sneaky" males, which easily are overlooked because their size, general morphology and colours are similar to those of a female. This rapid mating is necessary because large males will chase them out of their territory as soon as they are discovered. During each breeding season, a male will mate with many females if given the chance, but the female only mates once. Once a female has mated, she rejects other suitors by nodding her head at them.
Roughly one month after copulation, the female lays between one and six eggs, typically two or three. The leathery white eggs measure about 9 cm × 4.5 cm (3.5 in × 1.8 in) and weigh 80–120 g (2.8–4.2 oz). This is large for an iguana, and altogether the eggs may weigh up to one-quarter the weight of the female. The nest sites can be as much as 2 km (1.2 mi) inland, but typically are much closer to the coast. They are occasionally as little as 20 m (66 ft) inland, although they have to be above the high tide water mark. The nest is 30–80 cm (12–31 in) deep and dug in sand or volcanic ash by the female. On islands where there are few suitable sites and digging is difficult due to a relatively hard soil and many rocks, the female guards the nest for several days after the eggs have been buried, ensuring that they are not dug up by other nesting females. As in males defending their territory from other males, females defending their nest site from other females begin with a threat display. If this fails to scare the opponent away, the fights between females involve much biting and are less ritualized than the territorial fights between males. Where there are more suitable sites and the soil is loose, females are less likely to fight for a location and do not guard their nest after the eggs have been buried. The eggs hatch after about three to four months. The hatchlings are 9.5–13 cm (3.7–5.1 in) in snout-to-vent length, and weigh 40–70 g (1.4–2.5 oz). As soon as they emerge from the nest they run for cover, and begin their trip to locations that provides optimum conditions for feeding, temperature regulation and shelter. Some hatchlings have been recorded moving as far as 3 km (1.9 mi) in two days.


Panaeolus antillarum is a common and widely distributed small to medium-sized gray mushroom which grows on dung.  It is edible but not commonly eaten. Found from northern North America through Mexico into northern South America.
It is often mistaken for Panaeolus semiovatus var. phalaenarum or Panaeolus cyanescens, the latter species can be distinguished by the thinner, grayer cap and blue bruising.


Cap: 3 to 6 cm, bell-shaped to convex, white to light gray or yellowish,  The caps are thick, smooth, often with fine wrinkles and acquire a silver white shiny color in age.
Gills: Gray in young specimens, turning black as the spores mature.
Spore print: Jet black.
Stipe: 4 to 22 cm long and .5 to 2 cm thick, solid, sometimes slightly larger at the base.
Taste: Fungal.
Odor: Fungal.
Microscopic features:  Spores ellipsoid, 15 - 20 (21) x 10 - 14 x 8 - 10(11) μm.  Cheilocystidia cylindrical to narrowly utriform, colorless, 30 - 45 μm.  Sulphidia clavate, sometimes with a stalk, 25 - 50 μm.  Basidia four spored, 30 - 35 micrometers long.


As a saprobic fungus, Sarcoscypha occidentalis is part of a community of fungi that play an important role in the forest ecosystem by breaking down the complex insoluble molecules cellulose and lignin of wood and leaf litter into smaller oligosaccharides that may be used by a variety of microbes. Fruit bodies of S. coccinea may grow either solitarily, scattered or grouped together on sticks, twigs, and fragments of dead wood, usually somewhat decomposed and partially buried in the top 5 cm (2.0 in) of soil and forest litter. It prefers soil that is moist and shaded and has a high content of humus. Like all Sarcoscypha species, it prefers the wood of angiosperms, such as oak, maple, and basswood; one field guide notes a preference for shagbark hickory. In the United States, it fruits from late spring to early autumn, which contrasts it with S. coccinea, found usually in the spring.
The fungus is found in North America east of the Rocky Mountains, and at higher elevations in Central America and the Caribbean. It has also been collected in Japan and Taiwan.


Depending on their age, the fruit bodies of S. occidentalis may range in shape from deep cups to saucers to discs in maturity, and they can reach diameters up to 2 cm (0.8 in). In young specimens, the edges of the cup are curled inwards, and crenulate (with small rounded scallops); the cup edges in older specimens become laciniate (with jagged edges cut into irregular segments). The cups rest atop a stem that is small to medium-sized, up to 30 mm (1.2 in) long and 1.5–2 mm thick, and attached centrally or to the side to the underside of the cup. The base of the stem may be covered with translucent "hairs". The fertile spore-bearing inner surface of the cups, the hymenium, is bright red but fades to yellow or orange when dry. It is smooth or becomes so with time. The fruit bodies are fleshy to rubbery when fresh, but become leathery when dry. The flesh is thin and has no distinctive odor or taste. S. occidentalis is "of no culinary value". A Jamaican variety has been named (as Plectania occidentalis var. jamaicensis); it has a pinker hymenium.
Exipulum is a term used to refer to the tissue or tissues containing the hymenium of an ascomycete fruit body. The ectal excipulum (outer tissue layer) is thin (20–30 µm thickness), made of a tissue type known as texura porrecta, consisting of more or less parallel hyphae all in one direction, with wide lumina and non-thickened walls. The medullary exipulum (middle tissue layer) is thick (200–600 µm) and made of textura intricata, a tissue layer made of irregularly interwoven hyphae with distinct spaces between the hyphae. The asci (filamentous structures in which the ascospores develop) are cylindrical with gradually tapering bases, eight-spored, and measure 240–280 by 12–15 µm. The ascospores have ellipsoidal to roughly cylindrical shapes, usually with blunt ends, and measure 19–22 by 10–12 µm. They have smooth surfaces and usually contain two large oil drops. The paraphyses (sterile, filamentous hyphae present in the hymenium) are cylindrical, 2–3 µm thick, barely enlarged at their apices, straight, and mostly unbranched above. They may sometimes anastomose, but do not form a conspicuous network. The paraphyses contain numerous red granules.


Sarcoscypha occidentalis is frequently confused with S. coccinea, but is distinguished macroscopically from this species by its smaller fruit bodies, smaller spores, and less hairy exterior. The two also differ in seasonal and geographic distribution: S. coccinea fruits earlier in the year, and is distributed in eastern North America, in the midwest, in the valleys between the Pacific coast and the Sierras and Cascades, as well as Europe, Africa, Australia, and India. Another eastern North American species, S. austriaca, has scarlet fruit bodies up to 6 cm (2.4 in) wide, and fruits in the early spring.
S. occidentalis may also be mistaken for Microstoma floccosum, which occurs in the same habitat. M. floccosum, however, has taller cups and is covered with stiff white hairs. Another cup-fungus, Scutellinia scutellata, is disc-shaped without a stem, and is fringed with black hairs around its rim.


Teloschistes chrysophthalmus, often referred to as the gold-eye lichen or golden-eye, is a fruticose lichen with branching lobes. Their sexual structures, apothecia, are bright-orange with spiny projections (cilia) situated around the rim. It has a global distribution, but is often localized and rare in many parts of its range. Colonies most often form along coastal areas.
It is a twig species, meaning that it grows on twigs. It is rarely abundant. Several sites were discovered along the coast of England during 2012 and 2013, where the hosts include hawthorn and apple trees. In America it is known to grow on California live oak, dwarf coyote brush, Peritoma arborea, and magnolias.
This species has been studied for anti-viral secondary metabolites and was found to contain parietin which exhibits virucidal effects against certain arenaviruses (Arenaviridae).


Stereum hirsutum, also called false turkey tail and hairy curtain crust,  is a fungus typically forming multiple brackets on dead wood. It is also a plant pathogen infecting peach trees. S. hirsutum is in turn parasitised by certain other species such as the fungus Tremella aurantia. Substrates for S. hirsutum include dead limbs and trunks of both hardwoods and conifers.
The cap is 1–4 cm wide. The spores are white. It is inedible.
Similar species include Stereum ochraceoflavum, Stereum ostrea, and Trametes versicolor.


T. ornata ornata is found in the central United States from western Indiana, to eastern Texas, and into Louisiana; it can also be found in Northeastern New Mexico. T. ornata luteola inhabits the driest areas of all the box turtle species, and is found in western Texas, New Mexico, Arizona, and adjoining areas of northern Mexico.


Micrathena sagittata, also known as the arrow-shaped micrathena,  is a species of spider belonging to the family Araneidae. It is found in the eastern United States and throughout Central America.
This is a striking spider with a distinctive arrow-shaped abdomen which is largely yellow, with black depressions above and variable red and black patterning below. There are 3 pairs of tubercles that are tipped with black and red at the base. The pair of tubercles at the back end of the abdomen are rather large and point outward, forming two corners of the triangular, arrow-shaped body. Females can grow up to 9 millimetres (0.35 in) in length (excluding legs), while males are smaller at 5 millimetres (0.20 in). The males lack spines and are rarely seen.
The genus name is derived from the Greek "micro," meaning "small," and the goddess Athena. The species name sagittata is Latin meaning "arrowed, in the form of an arrow" referring to the shape of the abdomen.


The barred grass snake (Natrix helvetica) is a non-venomous colubrid snake from Western Europe, living in and close to water. It was included within the grass snake species, Natrix natrix, until August 2017, when genetic analysis led to its reclassification as a separate species.


Grass snakes prey mainly on amphibians, especially the common toad and the common frog, although they may also occasionally eat ants and larvae. Captive snakes have been observed taking earthworms offered by hand, but dead prey items are never taken. The snake will search actively for prey, often on the edges of the water, using sight and sense of smell (using Jacobson's organ). They consume prey live without using constriction.
Grass snakes are semi-aquatic.Amphibians make up the majority of their diet and they also eat fish and some small land mammals. Females are often longer than males (27.5 to 35 inches), which leads to most of the predation on land being caused by large adult females.


Grass snakes are strong swimmers and may be found close to freshwater, although there is evidence individual snakes often do not need bodies of water throughout the entire season.
The preferred habitat appears to be open woodland and "edge" habitat, such as field margins and woodland borders, as these may offer adequate refuge while still affording ample opportunity for thermoregulation through basking. Pond edges are also favoured and the relatively high chance of observing this secretive species in such areas may account for their perceived association with ponds and water.
Grass snakes, as with most reptiles, are at the mercy of the thermal environment and need to overwinter in areas which are not subject to freezing. Thus they typically spend the winter underground where the temperature is relatively stable.


The cap is 7–30 cm wide and 2–6 cm thick. Is shape resembles a large tongue, and it is rough-surfaced with a reddish-brown colour. The spores are pink and released from minute pores on the creamy-white underside of the fruit body. A younger Fistulina hepatica is a pinkish-red colour, and it darkens with age. It bleeds a dull red juice when cut, which can cause stains, and the cut flesh further resembles meat. It is sour in taste, edible and considered choice by some, although older specimens should be soaked overnight, as their juice can cause gastric upset.
The underside of the fruiting body, from which the spores are ejected, is a mass of tubules.  The genus name is a diminutive of the Latin word fistula and means "small tube", whilst the species name hepatica means "liver-like", referring to the consistency of the flesh.
The species is fairly common, and can often be found on oaks and sweet chestnut, from August to the end of autumn, on either living or dead wood. It has a tendency to impart a reddish-brown stain to the living wood of oaks, creating a desirable timber type. In Australia, it can be found growing from wounds on Eucalyptus trees.  It causes a brown rot on the trees which it infects.


It is endemic to the United States, southeast of a line joining Texas, Indiana and Massachusetts. It prefers woodland habitats, particularly moist woods dominated by hardwood trees. Though usually nocturnal, females are commonly found in moist woodlands of Florida throughout the autumn season. They can also be found on buildings, especially under the eaves where they may go unnoticed due to nocturnal habits.


Map turtles are more carnivorous than most other members of the family Emydidae, and the northern map turtle is no exception. Adult females have wide heads, strong jaws and broad alveolar crushing surfaces in their mouths which they use to feed on molluscs, their primary prey, as well as insects and crayfish. Adult males are much smaller and have narrower heads and feed on smaller molluscs and insects. Like most other aquatic turtles, feeding always takes place in the water. In places where invasive molluscs such as zebra mussels and Asian clams (Corbicula fluminea) are abundant, they may become the most important food of female northern map turtles.


Northern map turtles inhabit an area from south Quebec and Ontario to northern Vermont where it lives in the St. Lawrence River drainage basin. Its range extends west through the Great Lakes and into southern Wisconsin and eastern Minnesota, west of the Appalachians, south to Kansas and northwestern Georgia. It also occurs in the Susquehanna River system in Pennsylvania and Maryland and the Delaware River. Also, a small European population occurs in the Czech Republic, which was formed from escaped or released turtles and their descendants. In the Czech Republic, this turtle is considered an alien species, but is threatened together with Czech native turtles, other reptiles and amphibians by a large population of another invasive turtle, Trachemys scripta elegans.


The northern map turtle inhabits ponds, rivers, and lakes. They prefer large bodies of water and areas with fallen trees and other debris for basking. These turtles are more often found in rivers than in lakes or ponds. They are found in larger rivers and lakes in the northern portion of their range but are more likely to live in smaller rocky rivers and streams in the south and west. Since they are turtles, naturally they need the sun to survive.


Northern map turtles breed in the spring and fall. Most mating takes place in deep waters. The nesting period lasts from May to July. Unshaded sites with sandy soil are highly preferred. The female usually chooses well-drained areas for depositing the eggs. The nest cavity is dug with the hind feet. The size of the clutch is between six and 20. The eggs are oval, about 3.2 cm (1.3 in) long, and have a flexible shell. After the eggs are laid, the cavity is filled. They hatch after 50 to 70 days of incubation, and most hatchlings emerge in August to September. When a nest hatches late, the northern map turtle hatchlings have been known to overwinter in the nest. The female usually lays two or more clutches in one breeding season. The sexes of the young are determined by the temperature. At 25 °C (77 °F), incubation produces a majority of males, whereas 30 to 35 °C (86 to 95 °F) yields more females.


The Bengal monitor can reach 175 cm with a snout-to-vent length (SVL) of 75 cm and a tail of 100 cm. Males are generally larger than females. Heavy individuals may weigh nearly 7.2 kg. The populations of monitors in India and Sri Lanka differ in the scalation from those of Myanmar; these populations were once considered subspecies of the Bengal monitor, but are now considered two species within the V. bengalensis species complex. What was once the nominate subspecies, V. bengalensis, is found west of Myanmar, while the clouded monitor (V. nebulosus) is found to the east. Clouded monitors can be differentiated by the presence of a series of enlarged scales in the supraocular region. The number of ventral scales varies, decreasing from 108 in the west to 75 in the east (Java).
Young monitor lizards are more colourful than adults. Young have a series of dark crossbars on the neck, throat and back. The belly is white, banded with dark crossbars and are spotted with grey or yellow (particularly in the eastern part of the range). On the dorsal surface of young monitors, there are a series of yellow spots with dark transverse bars connecting them. As they mature, the ground colour becomes light brown or grey, and dark spots give them a speckled appearance. Clouded monitor hatchlings by comparison tend to have a series of backward-pointing, V-shaped bands on their necks.
Bengal monitors have external nostril openings (nares) that is slit-like and oriented near horizontal, and positions between the eye and the tip of the snout. The nares can be closed at will, especially to keep away debris or water. The scales of the skin are rougher in patches and on the sides, they have minute pits, especially well distributed in males. These scales with micropores have glandular structures in the underlying dermal tissue and produce a secretion which may be a pheromone-like substance. Like other monitors, Bengal monitors have a forked tongue similar to snakes. The function is mainly sensory, and is not very involved in the transport of food down the throat. Bengal monitors have fat deposits in the tail and body that serve them in conditions when prey are not easily available.
The lungs have spongy tissue unlike the sacs of other saurians. This allows for a greater rate of gas exchange and allows a faster metabolic rate and higher activity levels. Like all monitors, they have subpleurodont teeth, meaning the teeth are fused to the inside of the jaw bones. The teeth are placed one behind another, and there are replacement teeth behind and between each functional tooth (polyphyodont). The maxillary and dentary teeth are laterally compressed, sometimes with a slightly serrate cutting edge, while the premaxillary teeth are conical. There are 78 premaxillary teeth, 10 maxillary and 13 dentary teeth. Replacement teeth move forward and about four replacements happens each year for a tooth. While monitor lizards are venomous, there are no reports of the effects of venom in Bengal monitors other than a very controversial case report of fatal renal failure as a result of envenomation from this species.


Bengal monitors tend to remain active the whole day. Large adults may ascend vertical tree trunks, where they sometimes stalk and capture roosting bats. The species is a generalist, and feeds on a varied diet of invertebrates and vertebrates. Invertebrate prey mostly consists of beetles and their larvae followed by orthopterans, but also maggots, caterpillars, centipedes, scorpions, crabs, crayfish, snails, termites, ants, and earwigs. Larger individuals in addition to invertebrates also eat a large amount of vertebrate prey, including toads and frogs and their eggs, fish, lizards, snakes, rats, squirrels, hares, musk shrews, and birds. Hares and rodents such as Indian bandicoot rats are often caught by digging them out of their nests. Diet may differ based on season and locality, for example, they often forage for fish and aquatic insects in streams during the summer, and individuals in Andhra Pradesh eat mostly frogs and toads. Bengal monitors will also scavenge carrion, and sometimes congregate when feeding on large carcasses such as that of deer. In areas where livestock are common, they often seek out dung to forage for beetles and other insects.


The species ranges from Iran to Java, among the most widely distributed of monitor lizards as they are eurytopic and adaptable to a range of habitats. It is found in river valleys in eastern Iran, Afghanistan, India, Nepal, Sri Lanka, Pakistan, Bangladesh and Burma. The closely related species, the clouded monitor, occurs in southern Burma, Vietnam, Cambodia, Thailand, Malaysia, Sumatra, Java and the Sunda Islands. They have not been confirmed on Sumatra, and have been found to be absent from the Andaman Islands.
The species is mainly distributed through lower elevations below an altitude of 1500 metres, and is found both in dry semiarid desert habitats to moist forest. They are often found in agricultural areas.


Females may be able to retain sperm, and females held in confinement have been able to lay fertile eggs. Some species of monitor lizards such as the Nile monitor have additionally demonstrated to be capable of parthenogenesis. The main breeding season is June to September, but males begin to show combat behaviour by April. Females dig a nest hole in level ground or a vertical bank and lay the eggs inside, filling it up and using their snouts to compact the soil. The females often dig false nests nearby and shovel soil around the area. They sometimes make use of a termite mound to nest. A single clutch of about 20 eggs are laid. The eggs hatch in 168 to nearly as long as 254 days. About 40-80% of the eggs may hatch.


Bengal monitors are usually solitary and usually found on the ground, although the young are often seen on trees. Clouded monitors by contrast have a greater propensity for tree climbing. Bengal and yellow monitors are sympatric but are partially separated by their habitat as Bengal monitors prefers forest over agricultural areas. Bengal monitors shelter in burrows they dig or crevices in rocks and buildings, whilst clouded monitors prefer tree hollows. Both species will make use of abandoned termite mounds. Bengal monitors are diurnal like other monitors, becoming active around 6 AM and bask in the morning sun. During winter in the colder parts of their range, they may take shelter and go through a period of reduced metabolic activity. They are not territorial, and may change their range seasonally in response to food availability.
They are usually shy and avoid humans. They have keen eyesight and can detect human movement nearly 250 m away. When caught, a few individuals may bite, but rarely do so.
Although they are found on agricultural land, they prefer forests with large trees. Generally, high ground cover with large trees are favorable areas.
Captives have been known to live for nearly 22 years. Predators of adults include pythons, mammalian predators and birds. A number of ectoparasites and endoparasites are recorded.


The possibility of venom in the genus Varanus is widely debated. Previously, venom was thought to be unique to Serpentes (snakes) and Heloderma (venomous lizards). The aftereffects of a Varanus bite were thought to be due to oral bacteria alone, but recent studies have shown venom glands are likely to be present in the mouths of several, if not all, of the species. The venom may be used as a defensive mechanism to fend off predators, to help digest food, to sustain oral hygiene, and possibly to help in capturing and killing prey.


They are carnivores, and consume a wide range of prey. They are known to eat fish, frogs, rodents, birds, crabs, and snakes. They have also been known to eat turtles, as well as young crocodiles and crocodile eggs. Water monitors have been observed eating catfish in a fashion similar to a mammalian carnivore, tearing off chunks of meat with their sharp teeth while holding it with their front legs and then separating different parts of the fish for sequential consumption.
The diet of the Asian water monitor in an urban area in central Thailand includes fish, crabs, Malayan snail-eating turtles (Malayemys macrocephala), Chinese edible frogs (Hoplobatrachus rugulosus), birds, small rodents, domestic cats (Felis catus) and dogs (Canis familiaris), chickens (Gallus gallus domesticus), food scraps and carcass. The stomachs of 20 adult Asian water monitors caught on Redang Island contained mostly human food waste, followed by turtle eggs and hatchlings, crabs and lizard eggs.


The Asian water monitor (Varanus salvator) is a large varanid lizard native to South and Southeast Asia. It is one of the most common monitor lizards in Asia, ranging from coastal northeast India, Bangladesh, Sri Lanka, mainland Southeast Asia, and southern China to Indonesian islands where it lives close to water. It is listed as Least Concern on the IUCN Red List. It was described by Laurenti in 1768 and is among the largest squamates in the world.
Common names: Malayan water monitor, common water monitor, two-banded monitor, rice lizard, ring lizard, plain lizard, no-mark lizard and water monitor.


The water monitor is a large species of monitor lizard. Breeding maturity is attained for males when they are a relatively modest 40 cm (16 in) long and weigh 1 kg (2.2 lb), and for females at 50 cm (20 in). However, they grow much larger throughout life, with males being larger than females. Adults rarely exceed 1.5–2 m (4 ft 11 in – 6 ft 7 in) in length, but the largest specimen on record, from Sri Lanka, measured 3.21 m (10.5 ft). A common mature weight of V. salvator can be 19.5 kg (43 lb). However, 80 males killed for the leather trade in Sumatra averaged only 3.42 kg (7.5 lb) and 56.6 cm (22.3 in) snout-to-vent and 142 cm (56 in) in total length; 42 females averaged only 3.52 kg (7.8 lb) and 59 cm (23 in) snout-to-vent and 149.6 cm (58.9 in) in total length, although unskinned outsized specimens weighed 16 to 20 kg (35 to 44 lb). Another study from the same area by the same authors similarly estimated mean body mass for mature specimens at 20 kg (44 lb) while yet another study found a series of adults to weigh 7.6 kg (17 lb). The maximum weight of the species is over 50 kg (110 lb). In exceptional cases, the species has been reported to reach 75 to 90 kg (165 to 198 lb), though most such reports are unverified and may be unreliable. They are the world's second-heaviest lizard, after the Komodo dragon. Their bodies are muscular, with long, powerful, laterally compressed tails. The scales in this species are keeled; scales found on top of the head have been noted to be larger than those located on the back. Water monitors are often defined by their dark brown or blackish coloration with yellow spots found on their underside- these yellow markings have a tendency to disappear gradually with age. This species is also denoted by the blackish band with yellow edges extending back from each eye. These monitors have very long necks and an elongated snout. They use their powerful jaws, serrated teeth and sharp claws for both predation and defense. In captivity, Asian water monitors' life expectancy has been determined to be anywhere between 11–25 years depending on conditions, in the wild it is considerably shorter.


The Asian water monitor is widely distributed from India, Bangladesh, Sri Lanka, Myanmar and Thailand, Cambodia, Laos, Vietnam, the Chinese Guangxi and Hainan provinces, Malaysia, Singapore to the Sunda islands Sumatra, Java, Bali, Borneo and Sulawesi. It inhabits primarily lowland freshwater and brackish wetlands. It has been recorded up to an elevation of 1,800 m (5,900 ft).
The Asian water monitor is semiaquatic and opportunistic; it inhabits a variety of natural habitats though predominantly resides in primary forests and mangrove swamps. It has been noted that it is not deterred from living in areas of human disturbance. In fact, it has been known to adapt and thrive in agricultural areas as well as cities with canal systems, such as in Sri Lanka, where they are not hunted or persecuted. Habitats that are considered to be most important are mangrove vegetation, swamps, wetlands, and elevations below 1,000 m (3,300 ft). It does not thrive in habitats with extensive loss of natural vegetation and aquatic resources.


Lizards of the genus Callisaurus feed on a variety of prey, from insects, such as moths, ants and bees, to spiders and other smaller lizards. The diet occasionally includes vegetation, such as spring buds and flowers.


The zebra-tailed lizard (Callisaurus draconoides) is a species of lizard in the family Phrynosomatidae. The species is native to the Southwestern United States and adjacent northwestern Mexico. There are nine recognized subspecies.


Zebra-tailed lizards range in size from 2.5 to 4 inches (64 to 102 mm) in snout-to-vent length (SVL). These lizards are grey to sandy brown, usually with a series of paired dark gray spots down the back, becoming black crossbands on the tail. The underside of the tail is white with black crossbars. Males have a pair of black blotches on their sides, extending to blue patches on their bellies. Females have no blue patches, and the black bars are either faint or completely absent.


Zebra-tailed lizards live in open desert with hard-packed soil, scattered vegetation, and scattered rocks, typically  flats, washes, and plains.


In summer, zebra-tailed lizards typically lay two to eight eggs, which hatch from July to November, but more than one clutch can be laid during a season. Eggs are laid, presumably, in friable, sandy soil. Being a prey species for many animals, including birds, other lizards, and mammals, they have a fairly high reproductive rate.