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  • How We Get Our Skin Color Interactive

    How We Get Our Skin Color Interactive

    Interactive Video

    (3 min 32 sec) This interactive animation about the biology of skin color provides stop points at which students can further explore the material through additional text and illustrations, videos, questions, and simple interactive widgets.

  • Marathon Mouse

    Marathon Mouse

    Clip

    (53 sec) Dr. Ronald Evans discusses the so-called "marathon" mouse, with a mutation in the PPAR-gamma gene, and its performance on a treadmill relative to a normal mouse.