Scientists discover a 518-million-year-old ancestor with four eyes. Study shows how this ancient jawless fish evolved into the modern human sleep gland.

Survival of the fittest. Nature red in tooth and claw. The common view of natural selection is based solely on the individual: A trait allows an organism to out-compete its rivals and is thus passed ...

Researchers have shed new light on the features that enable tree-dwelling mammals to move effectively through their environments, providing insights into the evolution of the distinct upright postures ...

Tension: We claim to value deep thinking while systematically training our brains to process information in increasingly ...

On Tuesday, Emma Hayes named a 26-player roster for the upcoming SheBelieves Cup, which will include three matches in seven ...