SciShow: How Farmers Accidentally Killed Off North America's Locusts

Teacher or professor: SciShow
Subject: Science
Content of the Lesson: Go to http://Brilliant.org/SciShow to try their Solar Energy course. The first 200 subscribers get 20% off an annual Premium subscription. 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. Hosted By: Michael Aranda SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Bd_Tmprd, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Sam Buck, Christopher R Boucher, Eric Jensen, Lehel Kovacs, Adam Brainard, Greg, Sam Lutfi, Piya Shedden, Katie Marie Magnone, Scott Satovsky Jr, Charles Southerland, Charles george, Alex Hackman, Chris Peters, Kevin Bealer ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: DOI: 10.1126/science.1165939 (Anstey et al. 2009) http://halachicadventures.com/wp-content/uploads/2009/09/locust-sawrming-serotonin.pdf https://doi.org/10.1093/ee/19.5.1194 (Lockwood and Debrey 1990) https://academic.oup.com/ee/article-abstract/19/5/1194/354423?redirectedFrom=fulltext https://doi.org/10.1163/187498310X523874 (Lockwood 2010) https://brill.com/view/journals/tar/3/2/article-p129_3.xml?language=en doi:10.1016/S1055-7903(03)00209-4 (Chapco 2004) Image Sources: https://www.storyblocks.com/video/stock/fly-swarm-looped-v-4-rcqaivbcxjmwl6reu https://www.istockphoto.com/photo/swarm-of-locust-gm637972720-114104831 https://www.istockphoto.com/photo/desert-locust-gm121142231-16893249 https://commons.wikimedia.org/wiki/File:Individual-Pause-and-Go-Motion-Is-Instrumental-to-the-Formation-and-Maintenance-of-Swarms-of-pone.0101636.s020.ogv https://commons.wikimedia.org/wiki/File:Rocky_Mountain_locust.jpg https://www.istockphoto.com/vector/usa-map-gm1032423460-276529240 https://www.istockphoto.com/photo/yellowstone-national-park-in-wyoming-gm1149637216-310912441 https://www.istockphoto.com/photo/stream-flows-off-mountain-side-gm1223014527-359094649 https://www.istockphoto.com/photo/tidal-river-gm1015490880-273283898 https://www.istockphoto.com/photo/beaver-at-horseshoe-lake-gm1203224938-345741493 https://www.istockphoto.com/vector/virtual-abstract-background-gm969175188-264181357 https://www.istockphoto.com/vector/locust-large-herbivorous-insects-icon-gm1207829961-348898646 https://www.istockphoto.com/vector/locust-large-herbivorous-insects-attack-on-crops-icon-gm1207904579-348943398 https://www.istockphoto.com/photo/two-striped-grasshopper-resting-on-sand-gm1033208618-276702715 https://commons.wikimedia.org/wiki/File:Migratory_Grasshopper_-_Melanoplus_sanguinipes,_Coldstream_Cemetery,_Coldstream,_British_Columbia.jpg https://www.istockphoto.com/photo/brown-wood-texture-dark-wooden-abstract-background-gm1137996207-303653020


Click here to view video on YouTube.