New research coming out of the University of Cambridge, UK, suggests that complex ecosystems emerged earlier than we thought, in a period of Earth’s history called the Ediacaran.

Deep in the forests of Laos, in a cave in the Annamite Mountains, lay a single child’s tooth. That tooth – an unassuming molar – could be from a mysterious species of human we know little about, and of which few remains are known to exist.

A recent advance in 3D imaging techniques helped spark the biggest ever discovery of North American cave art

From machines to animals, there are many kinds of possible minds.

A team of archaeologists in Egypt has discovered the 4,300-year-old tomb of a man named Mehtjetju, an official who claimed that he had access to “secret” royal documents.