Part 5 of the TED Radio Hour episode How It All Began.

About Spencer Wells's TED Talk

Geneticist Spencer Wells tells the story of early humans, and our eventual migration from Africa.

About Spencer Wells

Spencer Wells is a scientist, author, documentary filmmaker, population geneticist and director of the Genographic Project from National Geographic. His fascination with the past has led him to the farthest reaches of the Earth in search of populations whose DNA unlocks the secrets of human history.

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