Mammal
From Conservapedia
This is an old revision of this page, as edited by AL (Talk | contribs) at 21:25, April 19, 2007. It may differ significantly from current revision.
Mammals are a class of vertebrate animals scientifically known as the Mammalia. They are primarily characterized by the presence of mammary glands in the female which produce milk to feed their young, which (except in the case of the Monotremata which lay eggs), are born live. Mammals are warm-blooded and most are hairy.
The first true mammals appeared in the early Jurassic.
