9 jan 160000000 ano antes da era comum - live birth

Descrição:

Live birth started in mammals around 160 million years ago during the time of the dinosaurs. The first mammals laid eggs, like modern platypuses, but over time, some developed the ability to give birth to live young.


Live birth has also evolved in many other animals, like some reptiles and fish, helping protect babies and give them a better chance of survival.

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