
GENERAL CHARECTERS OF MAMMALS
Mammal like Reptiles therapsida might have given Mammals. It occured at the end of Triassic period of Mesozoic era. In Jurassic period only few mammals existed. In the coenozoic era these animals increased their number and became very complex. This era is called 'age of mammals'. Today nearly 8500 species…
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- General Characters of Mammals