THOMAS PESCHAK is a National Geographic photographer, explorer and marine biologist, who specializes in documenting the beauty and fragility of the world's last wild places. He has produced 23 stories for National Geographic magazine covering a wide array of natural history and conservation issues, from the Galapagos Islands to the Kalahari Desert. A veteran of over 50 expeditions to some of the most remote and extreme corners of the world, on Instagram he inspires his audience of over 1.1 million people with tales from the conservation frontlines, trying to save endangered wildlife and critical habitats. The author of eight books, Peschak has won 20 Wildlife Photographer of the Year and six World Press Photo Awards. He is a popular speaker for National Geographic Live!, having presented shows in over 15 cities on three continents. His official TED talk, ""Dive Into an Ocean Photographer's World,"" has been viewed more than one million times.