Humans and our primate ancestors have been making and using stone tools for millions of years.
Modern humans first emerged between 200,000 and 300,000 years ago.
Highly controversial study places birthplace of hominin line outside of Africa, contrary to long held, popular thinking.
The discovery of more remains in a hard-to-reach cave raises more questions than it answers about Homo naledi and humans.
According to a new theory, our early ancestors lived in a polygamous society where male-male competition was fierce.
Ancient mastodon bones and stone tools found near San Diego suggest humans arrived in the Americas 115,000 years earlier than we previously thought.