Bears are carnivoran mammals of the family Ursidae. Although only 8 species of bears are living, they are widespread, appearing in a broad diversity of territories everywhere the Northern Hemisphere and partially in the Southern Hemisphere.
There are 3 species of bears in North America. The most constant is the American black bear (Ursus americanus). Despite it named the black bear can be different tones of black, white and brown. The black bear is found in all provinces and territories in Canada excluding Prince Edward Island and in 40 of the 50 U.S states. There are about 900 thousand black bears throughout North America.
The brown bear or grizzly (Ursus arctos), is observed in British Columbia, Alberta, the Yukon and Northwest territories as well as in the U.S. states of Washington, Idaho, Montana, Wyoming, Montana, Idaho. In North America, approximately 57 thousand bears live.
Due to low human activity in its distant Arctic environment, the polar bear (Ursus maritimus) preserves more of its original locality than any other persisting large carnivore. About 25 thousand polar bears live in the northern areas of Canada, American Alaska, Russia, Greenland and Norway.