Karaoke Lemurs and the Evolution of Music

Go to https://magicspoon.thld.co/scishow_1021 and use code SCISHOW to get $5 off today! Thanks to Magic Spoon for sponsoring today’s video!By giving some fossils a dental exam, we've learned more about how tusks first evolved. And humans aren't the only primate that can get down at karaoke night.Hosted by: Hank GreenSciShow is on TikTok! Check us out at https://www.tiktok.com/@scishow ----------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:Bryan Cloer, Chris Peters, Matt Curls, Kevin Bealer, Jeffrey Mckishen, Jacob, Christopher R Boucher, Nazara, charles george, Christoph Schwanke, Ash, Silas Emrys, Eric Jensen, Adam Brainard, Piya Shedden, Alex Hackman, James Knight, GrowingViolet, Sam Lutfi, Alisa Sherbow, Jason A Saslow, Dr. Melvin Sanicas, Melida Williams, Tom Mosner----------Looking for SciShow elsewhere on the internet?SciShow Tangents Podcast: http://www.scishowtangents.orgFacebook: http://www.facebook.com/scishowTwitter: http://www.twitter.com/scishowInstagram: http://instagram.com/thescishow----------Sources:Tusks:http://dx.doi.org/10.1098/rspb.2021.1670 https://www.nytimes.com/2019/01/04/science/dicynodonts-fossils-poland.html https://www.britannica.com/animal/therapsid#ref268707https://www.eurekalert.org/news-releases/932234https://www.eurekalert.org/news-releases/932339 Lemurs:https://www.cell.com/current-biology/fulltext/S0960-9822(21)01272-0https://www.sciencedirect.com/science/article/pii/S0960982220309246https://www.eurekalert.org/news-releases/931721 https://www.youtube.com/watch?v=wxVYsAodZ6U https://www.pnas.org/content/112/29/8987 https://www.science.org/doi/10.1126/science.aax0868 https://journals.sagepub.com/doi/abs/10.1177/0305735611425896 https://www.sciencedirect.com/science/article/pii/S0960982216315111 Images:https://www.eurekalert.org/multimedia/804794https://www.eurekalert.org/multimedia/804793https://www.eurekalert.org/multimedia/804611https://www.eurekalert.org/multimedia/804609https://www.eurekalert.org/multimedia/804613https://commons.wikimedia.org/wiki/File:Diictodon_galeops_model.jpghttps://commons.wikimedia.org/wiki/File:202012_Lystrosaurus.svghttps://www.istockphoto.com/photo/african-elephant-gm691589556-127623515https://www.istockphoto.com/photo/the-walrus-odobenus-rosmarus-large-flippered-marine-mammal-in-blue-water-svalbard-gm1254047213-366418749https://www.istockphoto.com/photo/wild-boar-close-up-gm946567170-258487259https://commons.wikimedia.org/wiki/File:Wadiasaurus1DB.jpghttps://commons.wikimedia.org/wiki/File:Moghreberia.jpghttps://commons.wikimedia.org/wiki/File:Diictodon-A72-03.jpghttps://commons.wikimedia.org/wiki/File:Mammoth_model.JPGhttps://www.istockphoto.com/photo/close-up-of-elephant-tusks-gm1225431476-360685977https://www.istockphoto.com/photo/walruses-fighting-gm144873731-4792876https://commons.wikimedia.org/wiki/File:Mammuthus_jeffersonii_05.tifhttps://www.istockphoto.com/photo/ground-squirrel-standing-waist-deep-in-the-grass-and-shouts-gm938439180-256625113https://commons.wikimedia.org/wiki/File:Eodicynodon_BW.jpghttps://commons.wikimedia.org/wiki/File:Placerias_hesternus.jpghttps://www.istockphoto.com/photo/yellow-bellied-marmot-marmota-flaviventris-gm155142149-18002484https://www.storyblocks.com/video/stock/song-thrush-perched-on-a-branch---cu-bdlympf2zgjb2boxudhttps://www.istockphoto.com/photo/shark-gm540853780-96662937https://www.istockphoto.com/photo/herd-of-elephants-in-africa-walking-through-the-grass-in-tarangire-national-park-gm1298742201-391553322https://www.eurekalert.org/multimedia/803987https://commons.wikimedia.org/wiki/File:Bach,_Sinfonia_in_F_minor_BWV_795,_mm._1-3a_composite_rhythm.pnghttps://www.storyblocks.com/video/stock/a-ticking-metronome-looping-with-alpha-matte-included-sal3tjpggiw5lqjo8https://commons.wikimedia.org/wiki/File:Luscinia_luscinia_vogelartinfo_chris_romeiks_CHR3635.jpghttps://www.shutterstock.com/image-photo/indri-called-babakoto-largest-lemurs-madagascar-1012932076