Peter Gwin is an editor at large for National Geographic and cohost of the award-winning podcast Overheard. He began as a staff writer for the magazine in 2003, and has contributed stories from an ...

15 min read This story appears in the April 2013 issue of National Geographic magazine ... of Yakutiya’s Ust-Yanskiy District, which covers a swath of tundra three times the size of Switzerland ...

Precambrian time covers the vast bulk of the Earth's history ... Photograph by Joel Sartore, National Geographic Photo Ark The earliest multicelled animals that survived the Precambrian fall ...

A new National Geographic series is taking viewers on international journeys to discover the rich stories behind celebrities' ...