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darw1nf1sh OP t1_jdo3830 wrote

Reply to comment by Luke4Pez in TIL, the placenta that forms with a fetus isn't created by the mother. It grows from the fertilized egg and some fetuses actually develop outside the uterus attached to the intestines in the body cavity. by darw1nf1sh

So are a lot of commenters. The placenta does not grow from the woman's body. The egg splits and become both the fetus and the placenta.

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Luke4Pez t1_jdocb4s wrote

Oh I see. That’s very interesting. When I was a baby I apparently had two of them. I wonder what that means? 🤔

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