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  • Bat Echolocation

    Bat Echolocation

    Data Points

    In this study, researchers tested whether bats change their behavior while hunting based on feedback from echolocation.

  • How Animals Use Sound to Communicate

    How Animals Use Sound to Communicate

    Click & Learn

    Using elephants, finches, bats, and moths, as case studies, explore different aspects of how animals use sound to communicate.

  • How We Get Our Skin Color Interactive

    How We Get Our Skin Color Interactive

    Interactive Videos

    (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.

  • Lactose Intolerance: Fact or Fiction

    Lactose Intolerance: Fact or Fiction

    Lessons

    Students evaluate and discuss several statements about lactose intolerance and evolution before and after watching the film. Also available in Spanish.

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