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The Encyclopaedia of Life Sciences is carefully organized and written in scholarly and comprehensive language. It combines the usefulness of a reference work with the readability …
Mammals are animals of the Mammalia, a large class of warm blooded vertebrates having mammary glands in the female, a thoracic diaphragm, and a four chambered heart. The class …
The Encyclopaedia of Life Sciences is carefully organized and written in scholarly and comprehensive language. It combines the usefulness of a reference work with the readability …
Mammals are animals of the Mammalia, a large class of warm blooded vertebrates having mammary glands in the female, a thoracic diaphragm, and a four chambered heart. The class …