Multiple choice general knowledge

Which is the only mammal to lay eggs?

  1. Dolphin

  2. Platypus

  3. Humans

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Monotremes are the only group of mammals that lay eggs instead of giving birth to live young. The platypus and echidna are the two extant monotreme species. This unique reproductive trait distinguishes them from all other mammals, which are either marsupials (pouched mammals) or placental mammals.

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