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  • Comparative Anatomy of the Domestic Chicken

    Comparative Anatomy of the Domestic Chicken

    Click & Learn

    Trace the evolutionary history of birds by comparing the shapes and structures of certain bones in a chicken to those of some of its extinct and living relatives. Also available in Spanish.

  • Prialt blocks pain signaling in mice

    Prialt blocks pain signaling in mice

    Animation

    (2 min 58 sec) Prialt does not block the mammalian motor synapse, but blocks the pain pathway in the spinal cord.