Difference between revisions of "Mammal"

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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...)
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Revision as of 12:00, March 24, 2007

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.