Human migrations: Eastern odyssey
Humans had spread across Asia by 50,000 years ago. Everything else about our original exodus from Africa is up for debate.
Ancient migration: Coming to America
For decades, scientists thought that the Clovis hunters were the first to cross the Arctic to America. They were wrong — and now they need a better theory
Archaeology: Date with history
By revamping radiocarbon dating, Tom Higham is painting a new picture of humans' arrival in Europe.
What makes a modern human
We probably all carry genes from archaic species such as Neanderthals. Chris Stringer explains why the DNA we have in common is more important than any differences.
Step by step around the globe
An interactive map of ancient human migrations.
The rancorous debate over when people first arrived in America has not helped science.