ANIMAL FACTS

Learn about some of the strange and unusual facts and terms in the animal kingdom.
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Do all creatures sleep?

Sleep might seem pretty simple, but scientists are still scratching their heads over questions surrounding the slumbering state. What does sleep mean to a whale, a brown bat, a migratory bird or even an invertebrate?

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  • Tundra

    Tundra

    What is tundra? Learn about the tundra and the animals that occupy this habitat. See more »

  • Ungulates

    Ungulates

    The term "ungulates," in its most common meaning and in this article, refers to animals with hooves, coverings of horn that protect the toes. See more »

  • Wildlife

    Wildlife

    The term wildlife refers to undomesticated animals, especially mammals, birds, and fish, that are found naturally in a given area. See more »

  • Germicide

    Germicide

    Germicide is the substance or agent that kills microorganisms. A disinfectant is a type of germicide that kills germs that cause disease. See more »

  • Incubation

    Incubation

    Incubation refers to the act of providing proper physical conditions for the development of certain living organisms. See more »

  • Metazoa

    Metazoa

    Metazoa is a term for all animals whose bodies are composed of more than one cell. See more »

  • Thorax

    Thorax

    The thorax is a division of certain animal bodies. It is the middle section of the body, situated between the head or neck and the abdomen. See more »

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