
(credit: La Crosse Tribune)
Some of the crop circles reported around the world obviously were made by pranksters, a retired University of Wisconsin-River Falls agronomy professor said Wednesday at the Midwest Farm Show at the La Crosse Center. But Lou Greub says aliens or another dimension seem to be the most likely explanation for others.
His presentation on crop circles will be repeated from noon to 12:30 p.m. today in the center's arena as part of the two-day farm show. Greub acknowledged crop circles are a controversial topic.
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