Bear Essay

675 WordsSep 18, 20143 Pages
Common Name: Grizzly bear Scientific Name: Ursus arctos horriblis Class: Mammalia Order: Carnivora Family: Ursidae Feeding Type: Omnivore Statistics: Weight: 650-700 lbs Height: 8 ft DESCRIPTION: Grizzly bears have a hump of muscles atop their shoulders, while in black bears it is located further back. Coat color ranges from off-white, tan, yellow, and brown to black. The name grizzly comes from the grizzled gold coloration on the tips of the fur as the bear matures. It has a concave face and a very short tail. Canine teeth may be up to 3” in length. Front claws are longer than in most bear species, up to 6” and curved. RANGE: Canada, Alaska, remote areas of Idaho, Montana, and Wyoming, including Yellowstone Park, Grand Teton Park, and Glacier National Park. It is found mainly in the western half of the North American continent. HABITAT: Grizzlies live in mountainous terrain and alpine meadows; home range may cover 45 square miles and overlap extensively, and there is no evidence of territorial defense. Most seem to prefer open areas, such as tundra, alpine meadows and coastlines. ADAPTATIONS: Grizzly bears have a keen sense of smell and hearing, but eyesight is poor. A heavy, fleecy undercoat and coarse guard hairs protect them from the cold. The shoulder hump is composed of fat and muscle. Dentition and powerful jaws allow for a varied diet. Claws are used for digging and marking territory by slashing tree trunks. Grizzlies can swim well, and can run up to 35 mph on land for short periods of time. Not true hibernators, a grizzly can be aroused easily from its den, which may be natural or dug by the bear. Dormancy begins in October-December and ends in March-May. Although generally solitary, grizzlies are the most social of North American bears, occasionally gathering in large numbers at major food sources, and often forming family foraging groups with

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