Researcher says fairy circles are alive

06/28/2012 | ScienceMag.org

Florida State University biologist Walter Tschinkel says fairy circle formations, bare patches of soil that appear from northern South Africa to southern Angola, are alive. Using satellite images, he tracked the appearance and disappearance of the circles over four years and concluded that the circles have a life span of between 30 to 60 years. Researchers still haven't found out what causes the fairy circles.

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