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A family tree for humanity

917,289 views | Spencer Wells • TEDGlobal 2007

All humans share some common bits of DNA, passed down to us from our African ancestors. Geneticist Spencer Wells talks about how his Genographic Project will use this shared DNA to figure out how we are -- in all our diversity -- truly connected.

All humans share some common bits of DNA, passed down to us from our African ancestors. Geneticist Spencer Wells talks about how his Genographic Project will use this shared DNA to figure out how we are -- in all our diversity -- truly connected.

This talk was presented at an official TED conference.

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Spencer Wells studies human diversity -- the process by which humanity, which springs from a single common source, has become so astonishingly diverse and widespread.

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This talk was presented at an official TED conference.