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The vaquita (/ v ə ˈ k iː t ə / və-KEE-tə; Phocoena sinus) is a species of porpoise endemic to the northern end of the Gulf of California in Baja California, Mexico.Reaching a maximum body length of 150 cm (4.9 ft) (females) or 140 cm (4.6 ft) (males), it is the smallest of all living cetaceans.
Species considered possibly extinct by the IUCN are marked as such. Species and subspecies which have critically endangered subpopulations (or stocks) are indicated. Where possible common names for taxa are given while links point to the scientific name used by the IUCN.
The Japanese sea lion and Caribbean monk seal disappeared in the 1950s, the most recent aquatic mammals to become extinct. Several land-based mammal species and subspecies have disappeared since then. If the baiji is extinct, the vaquita (Phocoena sinus) has become the most endangered marine mammal species. Some scientists retain hope for the ...
Despite the world's last captive thylacine dying in 1936, the secretive animal wasn't declared extinct until 1986. More recently in 2007 the Baiji dolphin , a rare river dolphin native to China ...
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The number of Mexico’s critically endangered vaquita marina porpoises sighted in the Gulf of California fell to between 6 and 8 this year, researchers said Tuesday. Last year, experts on a ...
Extinct subspecies such as the Javan tiger (Panthera tigris sondaica) [6] are not listed here as the species, in this case Panthera tigris, is still extant. The IUCN Redlist classification for each species serves as a citation, and the superscripted "IUCN" by the date is a link to that species' page.
Extinct due to destruction of nesting habitat by introduced goats, and predation by cats. [56] Zacatecas Worthen's sparrow: Spizella wortheni browni: Northwest Zacatecas, Mexico Last recorded in 1961. Extinct due to habitat loss to agriculture, overgrazing and erosion by cattle herding, and decline of native herbivores which maintained the bird ...