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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]
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]
However, a bear shot in autumn 1986 in Michigan was thought by some to be a grizzly×black bear hybrid, due to its unusually large size and its proportionately larger braincase and skull, but DNA testing was unable to determine whether it was a large American black bear or a grizzly bear. [111]
Rank Common name Scientific name Family Image Average mass (kg) Maximum mass (kg) Average length (m) Maximum length (m) Shoulder height (m) Native range
Family Ursidae (bears) is the largest of all the land caniforms. Eight species are recognized, divided into five genera. They range from the large polar bear (350–680 kilograms (770–1,500 lb) in males) to the small sun bear (30–60 kilograms (66–132 lb) in males) and from the endangered giant panda to the very common black bear. Common ...
A bear shot in autumn 1986 in Alaska was thought by some to be a grizzly × black bear hybrid, due to its unusually large size and its proportionately larger braincase and skull. DNA testing was unable to determine whether it was a large American black bear or a grizzly bear. [4]
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 ]
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 ft). Weights range greatly from the sun bear , which can be as low as 35 kg (77 lb), to the polar bear, which can be as high as 726 kg (1,600 lb).