Spencer Wells: Building a family tree for all humanity

All humans share some common bits of DNA, passed down to us from our http://www.ted.com African ancestors. Geneticist Spencer Wells talks about how his Genographic Project will use this shared...

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Jambo, bonjour, zdravstvujtye, dayo: these are a few of the languagesthat I've spoken little bits of over the course of the last six weeks,as I've been to 17 countries I think I'm up to, on this crazy tour I've been doing,checking out various aspects of the project that we're doing.And I'm going to tell you a little bit about later on.And visiting some pretty incredible places,places like Mongolia, Cambodia, New Guinea, South Africa, Tanzania twice --I was here a month ago.And the opportunity to make a whirlwind tour of the world like thatis utterly amazing, for lots of reasons.You see some incredible stuff.And you get to make these spot comparisonsbetween people all around the globe.And the thing that you really take a...