are whales endothermic?

From: Erich Hoyt (EHoyt@compuserve.com)
Date: Fri Oct 25 2002 - 07:03:50 EDT

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    Message text written by INTERNET:Actress892@aol.com

    "
    Hey do whales have both endothermic and exothermic?Please anwer today its
    for
    school.

    "

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    Whales are certainly primarily endothermic - ie warm-blooded organisms
    that generate heat to maintain their body temperature. But they can be
    exothermic in the sense that they release heat when they get too hot so as
    to maintain body temperature. THe dorsal fin and other extremities, for
    example, provide extra surface area for releasing heat.



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