• The video above is from the December 2012 iPad edition of National Geographic magazine. Find more interactive content, photos, and videos in the iPad version of National Geographic magazine.

  • Term Part of Speech Definition Encyclopedic Entry
    anatomy Noun

    structure of an organism.

    cheetah Noun

    large, spotted cat native to Africa.

    skull Noun

    bones of the head, supporting the face and protecting the brain and upper spinal cord.

    vertebrate Noun

    organism with a backbone or spine.

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