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15.15: Introduction to Mammals

  • Page ID
    46284
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    What you’ll learn to do: Identify characteristics of mammals

    Mammals are vertebrates that possess hair and mammary glands. Several other characteristics are distinctive to mammals, including certain features of the jaw, skeleton, integument, and internal anatomy. Modern mammals belong to three clades: monotremes, marsupials, and eutherians (or placental mammals).

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