When a woman in her mid-40s underwent a single, genetically normal embryo transfer, clinicians expected -- and counseled for -- a singleton pregnancy. What followed instead was one of the rarest ...

Sean and Carolyn Savage turned to a surrogate after giving up baby to parents. April 7, 2011— -- Sean and Carolyn Savage, the Ohio couple who gave their baby back to his biological parents after ...

The earliest days after fertilization, once a sperm cell meets an egg, are shrouded in scientific mystery. The process of how a humble single cell becomes an organism fascinates scientists across ...

Descriptions of the embryo go back at least to the time of Aristotle, but it has only been since the late 19 th century and early 20 th century that advances in experimental approaches allowed ...