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Mammals Theory

About Mammals

Hippopotamus

Common Features of Mammals Females have mammary glands which produce milk for young to suckle. The body is covered in hair at some stage in development. They are endothermic (warm-blooded). The inner ear has a system of 3 highly specialized bones for hearing. The heart is 4 chambered. Major Groups of Mammals Monotremes These are the most primitive mammals. The …

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