For decades, the story seemed settled: one early human species left Africa and spread across the world. But a new study ...

Understanding this crucial point in human history has focused on the Dmanisi Hominid Archaeological Site in Georgia where scientists now believe two human species coexisted at the site.

The human species is on the move. Last year there were more people living outside of their birth countries than at any other time in modern history, according to the United Nations. It’s a sea change ...

In this excerpt from "Sink or Swim," author Susannah Fisher explores the future of human migration, and what that will look like based on the difficult choices we make in the coming years. When you ...