what are mammals?
Mammals are members of a class of air-breathing vertebrate animals characterized by the possession of hair, three middle ear bones, and mammary glands functional in mothers with young.
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Asked 7/6/2011 6:44:50 AM
Updated 6/15/2014 6:58:46 AM
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selymi [6/15/2014 6:58:46 AM]
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