The Clovis, some of North America's oldest inhabitants, probably only made stone tools for about 300 years, new research shows.

The discovery of a carved stone box suggests that Lake Titicaca was a locus of ritual and ceremonial activity by the Inca, researchers say.

New research adds to growing evidence that our ancestors interbred with Neanderthals not just once, but over and over again throughout history.

Though it's been hotly debated for decades, tree rings may pin down the year the Thera volcano erupted over the Minoan civilization.

People traded beads made from ostrich eggshells in vast exchange networks in Africa, researchers find. The practice was a way to maintain relationships.

Researchers have extracted a whole human genome from 5,700-year-old "chewing gum." It could mark a new untapped source of ancient DNA.

The path of the Nile River has remained unchanged for about 30 million years. Now scientists know why.

An entire rattlesnake turned up in a coprolite, or fossilized feces. Here are two potential explanations.

Spear points that are more than 15,000 years old shed new light on the earliest people to explore and settle North America.