Overheard Season 3

Smuggled dinosaur bones. Man-made glaciers. An audacious quest to find the world's southernmost tree. Each week, we'll dive into one of the curiously delightful conversations we've overheard around National Geographic's headquarters. You'll be introduced to the explorers, photographers and scientists at the edges of our big, bizarre, and beautiful world. Hosted by Peter Gwin and Amy Briggs.