Draft 2 adv bio - Black Bears are not t rue hibernators;...

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Unformatted text preview: Black Bears are not t rue hibernators; they are active in the summer that f luctuates 12 degrees Celsius. The Black Bears can cut their metabolic in half. Their heart beat is forty to fifty warm enough that when they are hibernating, they can be easily awakened. The warm pelts and lower surface to mass ratio of this better retain body heat: body temperature is consistent all year. ...
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This note was uploaded on 05/06/2010 for the course BIO 2007 taught by Professor Staff during the Spring '08 term at University of Massachusetts Boston.

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