The Platypus Is One of Only Two Mammals That Lay Eggs

This unique semi-aquatic animal is a monotreme, a group of mammals that reproduce by laying eggs instead of giving birth to live young. They also possess a venomous spur on their hind legs, making them even more unusual among mammals.

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https://en.wikipedia.org/wiki/Platypus

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Published: March 26, 2026
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Biology Animals Weird Platypus Mammal Monotreme Eggs Venomous Australian Animals

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