WThe Badlands bighorn, Ovis canadensis auduboni, also commonly known as Audubon's bighorn sheep, is an extinct subspecies of bighorn sheep of the northern Great Plains in North America. Its existence as a separate subspecies is disputed.
WThe eastern wolf, also known as the timber wolf, Algonquin wolf or eastern timber wolf, is a type of wolf native to the Great Lakes region and southeastern Canada, considered to be either a unique subspecies of gray wolf or a separate species from the gray wolf. Many studies have found the eastern wolf to be the product of ancient and recent genetic admixture between the gray wolf and the coyote, while other studies have found some or all populations of the eastern wolf, as well as coyotes, originally separated from a common ancestor with the wolf over 1 million years ago and that these populations of the eastern wolf may be the same species as or a closely related species to the red wolf of the Southeastern United States. Regardless of its status, it is regarded as unique and therefore worthy of conservation with Canada citing the population in eastern Canada as being the eastern wolf population subject to protection.
WThe Florida panther is a North American cougar P. c. couguar population. In South Florida, it lives in pinelands, tropical hardwood hammocks, and mixed freshwater swamp forests.
WThe kouprey is a little-known, forest-dwelling, wild bovine species native to Southeast Asia. A young male was sent to the Vincennes Zoo in 1937 where it was described by the French zoologist Achille Urbain and was declared the holotype. The kouprey has a tall, narrow body, long legs, a humped back and long horns.
WMesaxonians a clade of ungulates whose weight is distributed on the third toe on all legs through the plane symmetry of their feet. For a while it was often seen to only contain the order Perissodactyla. Recent work in morphological cladistics and ancient DNA suggests that several extinct lineages, like the Desmostylia and some of the South American ungulates of Meridiungulata are related to the perissodactyls.
WThe red wolf is a canine native to the southeastern United States which has a reddish-tawny color to its fur. Morphologically it is intermediate between the coyote and gray wolf, and is very closely related to the eastern wolf of eastern Canada.
WThe tarpan, also known as Eurasian wild horse, is an extinct subspecies of wild horse. The last individual believed to be of this subspecies died in captivity in the Russian Empire during 1909, although some sources claim that it was not a genuine wild horse due to its resemblance to domesticated horses.