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Platypuses do not get pregnant, as they are one of only two types of mammals to lay eggs (the other is the echidna).

Fertilised platypus eggs stay in the mother's body for around 28 days, although lack of research means this has not been determined definitively. The eggs are incubated by the mother curling around them and keeping them warm and dry in the chamber of the burrow for another 10 days.

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15y ago

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