European cuckoos lay very different eggs depending on the host species. Genetic analyses have revealed how this adaptation is inherited without leading to speciation.

WASHINGTON (AP) — Oregon scientists used human skin cells to create fertilizable eggs, a step in the quest to develop lab-grown eggs or sperm to one day help people conceive. But the experiment ...

When you think about hens and their daily routine, egg laying might be the first thing that comes to mind. It’s a practice that seems incredibly mundane, yet it holds a treasure trove of fascinating ...