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The grizzly bear (Ursus arctos horribilis), also known as the North American brown bear or simply grizzly, is a population or subspecies [4] of the brown bear inhabiting North America. In addition to the mainland grizzly ( Ursus arctos horribilis ), other morphological forms of brown bear in North America are sometimes identified as grizzly bears.
The Mexican grizzly bear (Ursus arctos horribilis, formerly Ursus arctos nelsoni) [1] is an extinct population of the grizzly bear in the Southwestern United States and Mexico. The specimen later designated the holotype of U. a. nelsoni was shot by H. A. Cluff at Colonia Garcia, Chihuahua , in 1899. [ 2 ]
Ursus is a genus in the family Ursidae that includes the widely distributed brown bear, [3] the polar bear, [4] the American black bear, and the Asian black bear. The name is derived from the Latin ursus , meaning bear .
Bear habitats are generally forests, though some species can be found in grassland and savana regions, and the polar bear lives in arctic and aquatic habitats. Most bears are 1.2–2 m (4–7 ft) long, plus a 3–20 cm (1–8 in) tail, though the polar bear is 2.2–2.44 m (7–8 ft) long, and some subspecies of brown bear can be up to 2.8 m (9 ...
Brown bear size, most often measured in body mass, is highly variable and is correlated to extent of food access. Therefore, bears whose range in areas with access to openings, cover, and moisture or water are on average larger, whereas those bears that range into enclosed forested areas or arid, sparsely vegetated regions, both of which tend to be suboptimal foraging habitat for brown bears ...
The California grizzly bear (Ursus arctos californicus [3]), also known as the California golden bear, [4] is an extinct population of the brown bear, [5] generally known (together with other North American brown bear populations) as the grizzly bear. "Grizzly" could have meant "grizzled" – that is, with golden and grey tips of the hair ...
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MacFarlane's Bear, an abnormal-looking grizzly bear killed by Inuit hunters in 1864 and initially believed to represent a new species. Later examination determined it to be a grizzly bear. Old Ephraim (also called "Old Three Toes" due to a deformed foot), a male grizzly bear, was a very large bear who roamed the Cache National Forest c. 1911 ...