A fossilized dinosaur egg has unearthed secrets hidden for millions of years. Inside, a perfectly preserved embryo shows a ...

Yet, female birds can lay eggs, even without a male ... female bird has been near a male bird, there’s a possibility that the egg could be fertile and hatch. Below, we’ll explore what you ...

Newly hatched chicks are seen after being sorted in a machine that provides a new technique to enable hatcheries to peek into millions of fertilized eggs and spot male embryos, then grind them up ...