How Farmers Accidentally Killed Off North America’s Locusts

Locusts are a huge agricultural pest…except in North America. What happened to the Rocky Mountain locusts that once swarmed this continent? Researchers think that the colonization of the North American West might have had something to do with their disappearance.

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DOI: 10.1126/science.1165939 (Anstey et al. 2009) (Lockwood and Debrey 1990) (Lockwood 2010)
doi:10.1016/S1055-7903(03)00209-4 (Chapco 2004)

Image Sources:,_Coldstream_Cemetery,_Coldstream,_British_Columbia.jpg

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