Monotremes are animals that are the only species in the world that are born without a mouth or a stomach. They are also the only animals that can't digest food.

  • Monotremes are mostly found in Australia, but there are a few in the United States as well.

  • Monotremes are very rare, and scientists are still learning a lot about them.

Definition of monotremes


the most primitive mammals comprising the only extant members of the subclass Prototheria


egg-laying mammal

Nearby Words

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