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  • Mammals are warm blooded vertebrates.
  • They are covered with skin, fur or hair.
  • They breathe using lungs.
  • They give birth to live young (with the exception of monotremes).
  • They suckle their young on mothers' milk.

In addition, two more things which are unique to mammals are:

  • Three middle ear bones
  • The neocortex region of the brain.
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13y ago

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