Help, I’ve Lost My Butt!

Visit https://brilliant.org/scishow/ to get started learning STEM for free. The first 200 people will get 20% off their annual premium subscription and a 30-day free trial. It feels like for an animal, having one's butt fall off would be pretty bad. But apparently that's not always the worst thing to happen, at least not for these specific animals. Hosted by: Reid Reimers ---------- 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: Adam Brainard, Alex Hackman, Ash, Benjamin Carleski, Bryan Cloer, charles george, Chris Mackey, Chris Peters, Christoph Schwanke, Christopher R Boucher, DrakoEsper, Eric Jensen, Friso, Garrett Galloway, Harrison Mills, J. Copen, Jaap Westera, Jason A Saslow, Jeffrey Mckishen, Jeremy Mattern, Kenny Wilson, Kevin Bealer, Kevin Knupp, Lyndsay Brown, Matt Curls, Michelle Dove, Piya Shedden, Rizwan Kassim, Sam Lutfi ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/ TikTok: https://www.tiktok.com/@scishow Twitter: http://www.twitter.com/scishow Instagram: http://instagram.com/thescishow Facebook: http://www.facebook.com/scishow #SciShow #science #education #learning #complexly ---------- Sources: https://www.journals.uchicago.edu/doi/10.1086/712759 https://doi.org/10.1371/journal.pone.0116639 https://doris.ffessm.fr/Especes/Pycnogonum-litorale-Pycnogonon-941 https://frontiersinzoology.biomedcentral.com/articles/10.1186/s12983-018-0250-4 https://doi.org/10.1007/978-1-4020-6359-6_4098 https://www.pnas.org/doi/full/10.1073/pnas.2217272120 https://www.biorxiv.org/content/biorxiv/early/2019/01/05/511576.full.pdf https://onlinelibrary.wiley.com/doi/abs/10.1111/ivb.12397 https://bioone.org/journals/zoological-science/volume-36/issue-5/zs190058/Life-Cycle-of-the-Japanese-Green-Syllid-Megasyllis-nipponica-Annelida/10.2108/zs190058.full https://doi.org/10.1038/s41598-023-46358-8 https://www.eurekalert.org/news-releases/1008293 https://blog.biodiversitylibrary.org/2021/07/farewell-brood-x-2021.html https://www.nature.com/articles/s41598-018-19813-0.pdf https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6876628/pdf/nihms-1532750.pdf Image Sources www.gettyimages.com https://commons.wikimedia.org/wiki/File:Eidechse_abgeworfener_Schwanz.jpg https://www.inaturalist.org/observations/139193330 https://commons.wikimedia.org/wiki/File:Ananteris_balzanii_adult_male.jpg https://www.inaturalist.org/observations/139193330 https://commons.wikimedia.org/wiki/File:Pycnogonum_litorale_(dorsal).jpg https://www.inaturalist.org/observations/100307138 https://commons.wikimedia.org/wiki/File:Pycnogonum_littorale_(YPM_IZ_030249).jpeg https://commons.wikimedia.org/wiki/File:Mnemiopsis_leidyi_larvae.png https://onlinelibrary.wiley.com/doi/full/10.1002/reg2.98 https://commons.wikimedia.org/wiki/File:Ramisyllis_(10.1007-s13127-021-00538-4)_Figure_7.jpg https://bioone.org/journals/zoological-science/volume-36/issue-5/zs190058/Life-Cycle-of-the-Japanese-Green-Syllid-Megasyllis-nipponica-Annelida/10.2108/zs190058.full?tab=ArticleLinkFigureTable https://www.nature.com/articles/s41598-023-46358-8/figures/1 https://www.nature.com/articles/s41598-023-46358-8/figures/3 https://www.nature.com/articles/s41598-023-46358-8/figures/1 https://en.wikipedia.org/wiki/File:Magicicada_septendecim.jpg https://en.wikipedia.org/wiki/File:Cicada_with_extensive_abdomen_fungus_2021-05-31_093621_1_crop.jpg https://commons.wikimedia.org/wiki/File:9701Wounded_common_house_lizard_with_fresh_blood_and_tail_lost_due_to_autotomy_29.jpg