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Do some mammals have yolk sacs?

In: Miscarriages, Babies [Edit categories]

Answer:

Yes, mammals have yolk sacs. Although they may not be as easily noticeable as the yolk in a chicken egg, it is still there. The yolk contains proteins and fats needed for the embryos further development.

First answer by ID1276623640. Last edit by ID1276623640. Question popularity: 3 [recommend question].

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