In 2009, a journalist named Christopher McDougall published a book called “Born to Run: A Hidden Tribe, Superathletes, and the Greatest Race the World Has Never Seen”. It is an odd combination of popular science, tirade against the modern running-shoe industry and a true story.

Researchers from the Sharma Centre for Heritage Education, India, find stone tools in the sediments of Attirampakkam, a small town near Chennai which are dated to be 3,85,000-year-old. This finding gives us a new understanding for how and when human migration out of Africa might have taken place.