Archaeologists in Britain say they've found the earliest evidence of humans making fires anywhere in the world. The discovery moves our understanding of when humans started making fire back by 350,000 years.

A new study finds that about half of the physical variation seen in modern dogs existed during the Stone Age.

Researchers have found evidence of horseback riding in skeletal remains of people who lived about 5,000 years ago, adding to a body of research on when people first started using horses to get around.