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August 18, 2008 TED | TEDBlog: Building a family tree for all humanity: Spencer Wells on TED.com Filed under: — Tags: Genographic Project, Human, Meave Leakey, National Geographic Society, Spencer Wells, Stone Age, Thomas J. Watson Research Center, United States Census Bureau — Digtital Move's @ 9:01 am TED | TEDBlog: Building a family tree for all humanity: Spencer Wells on TED.com.