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The three different ways mammals give birth

All mammals share certain characteristics, like warm blood and backbones. But despite their similarities, these creatures also have many biological differences — and one of the most remarkable differences is how they give birth. Kate Slabosky details the placental, marsupial, and monotreme methods of giving birth.

Read more about this lesson at TED Ed.

Next: Rare baby platypus footage + a closer look at monotremes, a baby echidna (a puggle) hatches from an egg, and The Science of Milk.

Bonus reptile footage: An anaconda gives birth underwater.

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