Geographic variation among brown and grizzly bears (Ursus arctos) in North America
E. Raymond Hall
Abstract
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E. Raymond Hall
Abstract
Open-access reader
Three species of bears of the genus Ursus inhabit the North American continent (Fig. 1), and up to the present (1983) at least
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Three species of bears of the genus Ursus inhabit the North American continent (Fig. 1), and up to the present (1983) at least
Key concepts: Ursus, Grizzly Bears, Geography, Variation (astronomy), Geographic variation, Demography, Population, Physics