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Everybody’s Got One

Radiolab

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Is the Placenta Blanket Some Kind of Cloak?

Melissa wilson, geneticis at arizona state. We need to get rid of not self. It's a foreign invader. And so if an embryo just waltzes into a uterus one day without little placenta blanket around it, the mother's body would gather up a squad of white blood cells and kill it. But yes, the mother literally doesn't even see that the pregnancy is there. Mam's still at the bar.

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