With an opposable big toe resembling a human thumb, the fossilized Burtele foot suggested its owner was a skilled climber, ...

In Nepal’s Upper Mustang, near the southern edge of the Tibetan Plateau, life unfolds in some of the thinnest air on Earth.

In the animal kingdom, penises can be spiked, split, corkscrewed – even detachable. They’re one of the most diverse ...

The human genome is made up of 23 pairs of chromosomes, the biological blueprints that make humans … well, human. But it turns out that some of our DNA — about 8% — are the remnants of ancient viruses ...

Researchers at the University of Maine are theorizing that human beings may be in the midst of a major evolutionary shift—driven not by genes, but by culture. "Human evolution seems to be changing ...