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Mysterious 'Fairy Circles' in Africa: Explained

A new theory suggests that 'fairy circles' in Africa's Namib Desert are the result of subsurface competition for resources among plants.

September 5, 2013
10:20 AM EDT
Fairy circles close to Jagkop on the NamibRand Nature reserve. These bizarre pockmarks have defied explanation, with a new theory suggesting they are the result of the subsurface competition for resources among plants. | Sandra Todd