A crop circle or crop formation is a pattern created by ... - dofaq.co
crop circle

A crop circle or crop formation is a pattern created by ...

wikipedia - 03 Sep 2015
A crop circle or crop formation is a pattern created by flattening a crop, usually a cereal. The term was first coined in the early 1980s by Colin Andrews. Crop circles have been described as all falling "within the range of the sort of thing done in hoaxes" by Taner Edis, professor of physics at Truman State University. Although obscure natural causes or alien origins of crop circles are suggested by fringe theorists, there is no scientific evidence for such explanations, and human causes are

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