Human Development

Quadruplets Set a Medical Record: The First Conceived Naturally From Four Separate Eggs (2015)

These cute quadruplets in England set a medical first in the U.K. They are the first quadruplets ever to be conceived naturally from four separate fertilized eggs.

The odds of natural quadruplets are about 1 in 700,000.

To have them conceived from four different eggs is even less likely.


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