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Section of Mammals

Carnegie Museum of Natural History

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  • Section of Mammals
  • PA Mammals
  • Childs Frick Expedition

What is a Mammal?

A mammal is a hairy, milk-producing endotherm. The following is a brief description of mammalian characteristics:

  • Mammals have hair or fur
  • Mammal mothers nurse their young
  • Mammals are “warm blooded”
  • Mammals have four-chambered hearts
  • Nearly all mammals bear live young (all Pennsylvania mammals do)

Example of hair or fur

redish fox fur
Guard hair and underfur of Red fox, Vulpes vulpes.

 

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