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Mammal - Wikipedia, the free encyclopedia
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日期:2024-07-09
Mammals (class Mammalia /məˈmeɪli.ə/) are a clade of endothermic amniotes distinguished from the reptiles and the birds by the possession of hair, three middle ear bones, mammary glands, and a neocortex (a region of the brain). The mammalian brain regulat...看更多