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Mammals - They're (sometimes) big, they're hairy, and they're warm-blooded. From human being to moose and from cats to rats, Bill Nye explains what it takes to be in the mammal family.
First Air Date : Sep 10, 1993
Last Air date : Jun 20, 1998
Episode : 100 Episode
Season : 5 Season
Runtime: 26:14 minutes
Studio: PBS
Country: United States of America