Wade Davis: Cultures at the far edge of the world

With stunning photos and stories, National Geographic Explorer Wade Davis celebrates the extraordinary diversity of the world s indigenous cultures, which are disappearing from the planet at an alarming rate. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world s leading thinkers and doers are invited to give the talk of their lives in 18 minutes including speakers such as Jill Bolte Taylor, Sir Ken Robinson, Hans Rosling, Al Gore and Arthur Benjamin. TED stands for Technology, Entertainment, and Design, and TEDTalks cover these topics as well as science, business, politics and the arts. Watch the Top 10 TEDTalks on at