세상에서 가장 적은 개체수를 가진 동물은 무엇인가?
The vaquita (; "Phocoena sinus") is a species of porpoise endemic to the northern part of the Gulf of California that is on the brink of extinction. Based on beached skulls found in 1950 and 1951, the scientific description of the species was published in 1958. As of March 2018 only about 12-15 individuals remain. The word "vaquita" is Spanish for "little cow". Other names include cochito (Spanish for "little pig"), desert porpoise, vaquita porpoise, Gulf of California harbor porpoise, Gulf of California porpoise, and gulf porpoise. Since the baiji ("Lipotes vexillifer") is thought to have gone extinct in 2006, the vaquita has taken on the title of the most endangered cetacean in the world. It has been listed as critically endangered since 1996. The population was estimated at 600 in 1997, below 100 in 2014, approximately 60 in 2015, around 30 in November 2016, and only 12-15 in March 2018, leading to the conclusion that the species will soon be extinct unless drastic action is taken.
vaquita