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On the Edge, Timbuktu, Part 3

An ethnobotanist travels into the Sahara to document the vanishing customs of a desert people. In the third of a four-part National Geographic Radio Expedition, NPR's Alex Chadwick follows Wade Davis to Araouane, a caravan town at least 1,000 years old.

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Alex Chadwick
For more than 30 years, Alex Chadwick has been bringing the world to NPR listeners as an NPR News producer, program host and currently senior correspondent. He's reported from every continent except Antarctica.