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9 Interesting Facts About the American Black BearT he American black bear (Ursus americanus) is one of eight species of bear in the bear family Ursidae.Black bears are native to North America and can be found in almost all 50 states. They are ...
Content of 13С and 15N Isotopes in Bone Collagen of Geographical, Age, and Sex Groups of the Ural Cave Bear (Mammalia, Carnivora, Ursidae, Ursus (Spelaearctos) kanivetz Verestchagin, 1973).
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9 Interesting Facts About the North American Grizzly BearThe grizzly bear (Ursus arctos horribilis) is also known as the North American brown bear. It is the third-largest bear belonging to the family Ursidae, which includes eight species of bears.
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