For Mammals we have terms and definitions in 3 topics. The topics are Anthromorphemics, Anthropology and Evolution.

Members of the class Mammalia, a class of the subphylum Vertebrata, that are characterized by a constant level of activity independent of external temperature and by mammary glands, hair or fur, heterodonty, and other features.
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Members of the class Mammalia, a class of the subphylum Vertebrata, that are characterized by a constant level of activity independent of external temperature and by mammary glands, hair or fur, heterodonty, and other features.
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The group (specifically, a class) of animals, descended from a common ancestor, that share the derived characters of hair or fur, mammary glands, and several distinctive features of skeletal anatomy, including a particular type of middle ear. Humans, cows, and dolphins are all mammals.
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