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 ...

A groundbreaking digital reconstruction of a million-year-old skull in China suggests humans may have emerged and co-existed hundreds of thousands of years earlier than scientists previously believed.

Ancient, fossilized teeth, uncovered during a decades-long archaeology project in northeastern Ethiopia, indicate that two different kinds of hominins, or human ancestors, lived in the same place ...