Add Yahoo as a preferred source to see more of our stories on Google. Wicker basket full of white and brown eggs - Biserka Stojanovic/Getty Images It is nearly impossible to tell if an egg sitting on ...

(Reuters) -Human skin cells may one day be used to create functional human eggs in a step toward helping women have their own genetic children when their natural eggs are dysfunctional, according to ...

Conception is an unbalanced equation: One egg plus one sperm equals a sum far more valuable than its parts. For years, University of Bath molecular embryologist Tony Perry has been trying to decode ...

In the beginning, no one really understood how babies were made. Thinkers puzzled for millennia about how life arose from one generation to the next. But not until the 17th century did scientists ...

It is nearly impossible to tell if an egg sitting on the counter is fertilized or not by eyeballing it. Some chicken farmers ...