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  • Challenge Question #3

    Thu, 06 Mar 1997 13:39:39 +0000

    The reason why a female caribou keeps her antlers during the
    winter,while males drop their antlers is because the females
    have a hormone called estrogen and the males have
    testosterone, the sex hormones. It is because of the
    estrogen that the antlers stay attached. Females need their
    antlers because they need to protect their young. The males
    lose or drop their antlers because they use their antlers to
    fight for a female. When mateing season is over they no
    longer need them.