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What's Behind The 'Fairy Circles' That Dot West Africa?

Fly from Angola down to South Africa and you'll see thousands of circles of bare dirt covering the land. They're up to 30 feet across and ringed by tufts of grass. The origin of the shapes has long been a mystery, but researchers now say hordes of termites may be acting as engineers.
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North Korea's Perilous Posturing

Kojo examines the latest bellicose moves by North Korea, and finds out what they mean for security on the Korean peninsula and U.S. security.


From The Stone Age To The Digital Age In One Big Leap

Deep in the Amazon, an isolated Brazilian tribe almost vanished when it first had contact with the modern world. Now the Surui tribe is working with Google to do things like report on illegal logging in the forest.

In Congo, Lure Of Quick Cash Turns Farmers Into Miners

"Subsistence mining" is now believed to be the single largest sector for employment. But the work is arduous, windfalls are rare, and miners complain that Chinese companies exploit them.

Exploring The World's Highest Peaks From Your Couch

Have you ever wanted to see the view from the top of Mt. Kilimanjaro in Tanzania? Google is making that possible — sending employees up the world's highest peaks with digital cameras, tripods and fisheye lenses to take photos that can be stitched together for a 360 degree view.