This story appears in the January 2015 issue of National Geographic ... and North America were connected by a broad landmass called Beringia during the last ice age and that the first Americans ...

This story appears in the January 2011 issue of National Geographic magazine ... deserts of Mexico and the North American Arctic—America's first city and arguably American Indians' finest ...

A polar researcher turned National Geographic photographer, Bishop was on the first U.S. expedition to summit Everest. (See the story from the October 1963 issue of National Geographic.) ...