Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would otherwise plague a self-cloning species.

Microglia (immune cells) and the RANK protein are essential for triggering puberty and maintaining fertility in the brain.

Researchers found a rare, strictly binary brain feature in mice that is permanently active in females but completely dormant ...

Learn 12 proven ways to increase your sex drive. Science-backed tips include exercise, better sleep, nutrition, and supplements to boost libido.

A new University of Utah-led study has discovered the mechanism behind a decades-old evolutionary mystery—how "selfish chromosomes" cheat the rules of genetic inheritance. The researchers found that ...

Union Pacific’s Big Boy No. 4014 scheduled for whistle-stops in Wyoming ...