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February 4, 2005

Strange But True!

Q. A woman has four children conceived naturally with her husband, but a reliable genetics lab test concludes she could not be their biological mother. How is this possible?

A. She is one of some 30 documented cases of a human "tetragametic chimera," where two non-identical twins combine in the womb at an early stage to form a single organism, says online "Wikipedia: The Free Encyclopedia."


 
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