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No mammals lay eggs in southeastern US.

The only two egg-laying mammals in existence are the platypus and the echidna, which are classed as monotremes. They are still classified as mammals because they feed their young on mothers' milk - a characteristic unique to mammals alone.

There are just three known species of egg-laying mammals, or monotremes. They are the platypus and short-beaked echidna (Tachyglossus aculeatus) of Australia, and the long-beaked echidna (Zaglosssus bruijni) of Papua New Guinea.

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13y ago

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