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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.
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. [17] [page needed]
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 ...
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 ...
Because of the rich variety of foods available on Kodiak, the bears on the archipelago have some of the smallest home ranges of any brown bear populations in North America [20] and a great deal of overlap occurs among the ranges of individual bears. Home ranges of adult sows on Kodiak Island average 130 km 2 (50 sq mi), while boar home ranges ...
Today, grizzly bears occupy only 4% of their former range, which included much of the Rocky Mountain Region, extended up into western and central Canada and northern Mexico, according to ...
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 ...
Nov. 15—Thousands of people have weighed in on the federal government's latest proposal to bring grizzly bears back to the North Cascades. The two draft documents that lay out a plan to ...