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  • These Limbs Are Made for Walkin'...

    These Limbs Are Made for Walkin'...

    Image of the Week

    ... but that's not all they'll do. Several genes determine the diverse shapes and functions of crustacean appendages. 

  • From Butterflies to Humans

    From Butterflies to Humans

    Lecture

    (58 min 30 sec) How and why butterflies and fruit flies got their spots, and the fossil record for human evolution.