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New page: Class of animals scientifically know as the Mammalia. They are primarily characterized by the presence of mammary glands in the female which produce milk to feed their young. The fir...
Class of animals scientifically know as the Mammalia. They are primarily characterized by the presence of mammary glands in the female which produce [[milk]] to feed their young.
The first true mammals appeared in the early [[Jurassic]].
The first true mammals appeared in the early [[Jurassic]].