This story appears in the March 2010 issue of National ... the tribes of the Omo were shielded from the outside world by mountains, savanna, and by Ethiopia's unique status as the only African ...

This story appears in the January 2012 issue of National Geographic magazine ... burps have shaken the area in the years since. East Africa's Afar depression is one of the world's most ...

This story appears in the June 2011 issue of National Geographic magazine ... when Namibia at last gained independence from South Africa, it was one of the first countries in the world to write ...

This story appears in the February 2017 issue of National Geographic magazine ... I didn’t look for unspoiled nature or uncontacted tribes; I collaborated directly with local communities.

This story appears in the August 2015 issue of National ... Africa. Ten thousand years ago the lake was far larger than it is now. Seven thousand years ago the lake was shrinking. Neolithic tribes ...