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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 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 ...
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 ...
A gradual diminishment in body size is noted in grizzly bears from the sub-Arctic zone, from the Brooks Range to the Mackenzie Mountains, presumably because food becomes much sparser in such regions, although perhaps the most northerly recorded grizzly bears ever, in the Northwest Territories, was a large and healthy male weighing 320 kg (710 ...
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 ]
A mature non-lactating female grizzly bear with worn teeth was then captured and euthanized, with DNA testing confirming this was the responsible bear. This attack occurred about 24 kilometres away from the May 4, 2021, attack that killed David Lertzman, but the DNA testing confirmed that different bears were involved.
Grizzly bears (Ursus arctos horribilis) — native carnivoran mammals of North America. Subcategories This category has the following 2 subcategories, out of 2 total.
The Ussuri brown bear (Ursus arctos lasiotus), also known as the Ezo brown bear, Russian grizzly bear, or the black grizzly bear, [3] is a subspecies of the brown bear or a population of the Eurasian brown bear (U. a. arctos). [which?] One of the largest brown bears, a very large Ussuri brown bear may approach the Kodiak bear in size. [4]