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The Mysteries of the Grasshopper Swarm

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The grasshopper invasion in Las Vegas might have felt abnormal. It certainly appeared that way in the numerous photos and videos that went viral. 


But here’s the thing: It’s not that unusual -- it’s what grasshoppers do. 


Why they do it is another question, and one Derek Woller, an entomologist based in Phoenix with the U.S. Department of Agriculture, hopes to answer. 



Derek Woller, entomologist, U.S. Department of Agriculture

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Kristy Totten is a producer at KNPR's State of Nevada. Previously she was a staff writer at Las Vegas Weekly, and has covered technology, education and economic development for the Las Vegas Review-Journal. She's a graduate of the Missouri School of Journalism.