Illustration of a blastocyst, an early stage of an embryo
JUAN GAERTNER/SCIENCE PHOTO LIBRARY
From One Cell
Ben Stanger (W. W. Norton)
“WHERE do infants come from?” isn’t only a query some mother and father dread listening to from their youngsters, but additionally one which has perplexed philosophers because the time of Historical Greece. For anybody right this moment, armed with the grasp of fundamental biology that was missing in our forebears, it’s exhausting to think about how they might have even framed the issue. As soon as you understand one thing, it’s exhausting to unknow it.
To get round that conceptual …