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A grizzly bear can also be identified by its rump, which is lower than its shoulders; a black bear's rump is higher than its shoulders. [33] A grizzly bear's front claws measure about 51–102 mm (2–4 in) in length; a black bear's claws measure about 25–51 mm (1–2 in) in length. [33]
Bear habitats are generally forests, though some species can be found in grassland and savana regions, and the polar bear lives in arctic and aquatic habitats. 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 ...
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 ...
While male bears potentially live longer in captivity, female grizzly bears have a greater annual survival rate than males within wild populations, per a study done in the Greater Yellowstone Ecosystem. [138] Annual mortality for bears of any age is estimated at 10% in most protected areas. [56]
Alaska Peninsula brown bears are among the largest types of brown bear in the world. They usually measure 8 ft (2.4 m) in length, usually have a shoulder height of about 4 to 4 1/2 ft or 1.22 to 1.37 meters (137 cm), and a hindfoot length of 11 in (28 cm).
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Ursus is a genus in the family Ursidae that includes the widely distributed brown bear, [3] the polar bear, [4] the American black bear, and the Asian black bear. The name is derived from the Latin ursus , meaning bear .
Grizzly bears roamed the North Cascades of Washington for thousands of years but have disappeared more recently.