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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.
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Grizzly bears (Ursus arctos horribilis) — native carnivoran mammals of North America. Subcategories This category has the following 2 subcategories, out of 2 total.
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 ...
Bears of northern regions, including the American black bear and the grizzly bear, hibernate in the winter. [ 110 ] [ 111 ] During hibernation, the bear's metabolism slows down, its body temperature decreases slightly, and its heart rate slows from a normal value of 55 to just 9 beats per minute. [ 112 ]
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 ...
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 ]
A bear shot in autumn 1986 in Michigan was thought by some to be an American black bear/grizzly bear hybrid, because of its unusually large size and its proportionately larger brain case and skull. DNA testing was unable to determine whether it was a large American black bear or a grizzly bear. [16] [page needed]