Photographer, adventurer and storyteller Aaron Huey captures all of his subjects -- from war victims to rock climbers to Sufi dervishes -- with elegance and fearless sensitivity. See more of Aaron's work at his website, +Aaron Huey+. (Note: some images may be graphic in content.) Find out more about the culture of the Lakota Indians. In another TED Talk, Wade Davis discusses the the world's indigenous cultures who are rapidly disappearing.