Wicker basket full of white and brown eggs - Biserka Stojanovic/Getty Images It is nearly impossible to tell if an egg sitting on the counter is fertilized or not by eyeballing it. Some chicken ...

Researchers have discovered a mark left behind in unfertilized egg cells that determine which DNA instructions will be inherited if the egg is fertilized. when these instructions are missing, enlarged ...

As you age, your fertility slowly declines. By freezing eggs or embryos when you’re young (usually under the age of 40), you can preserve your eggs’ health and, through in vitro fertilization (IVF), ...