New research reveals that ancient interbreeding between humans and Neanderthals shaped our modern human DNA - especially on the X chromosome.

Humans don’t have a defined mating season like deer or wolves. Here’s how evolution blended biology, culture and social life into year-round intimacy.

A new study found that when Neanderthals and early humans interbred — a known phenomenon between the two species — most pairings appear to have involved Neanderthal males and human females. This may ...

As humpback whale populations recover, researchers are gaining a richer understanding of these wondrous creatures. A new study suggests it may take years for humpbacks to learn how to successfully ...