zombiechewtoy t1_jdmwlgl wrote
Reply to comment by afox892 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
Jesus Christ I'm glad I didn't know any of this ahead of my first ultrasounds
Edit: I also wonder if molar pregnancy is what happened to queen Mary.
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