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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 ...
To date, there is a single recorded case of fully-grown wolves being killed by a grizzly bear. [126] Given the opportunity, however, both species will prey on the other's cubs. [127] In some areas, grizzly bears regularly displace cougars from their kills. [128]
Native to North America, grizzly bears (also known as brown bears) live in nearly all areas of Alaska. In fact, the state is home to more than 98% of the world’s brown bear population! The only ...
Related: Video of Grizzly Cub Fishing for the First Time Is Making People Smile. Cool Grizzly Bear Facts. Grizzly bears are terrifying, and I wouldn't want to run into one out in the wild. As you ...
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 ]
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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 ...