SciShow's video: The Secret of Regeneration in Alligators

Why can amphibians, fish and even some reptiles regenerate limbs, while birds and mammals can’t? Researchers think they might have found a clue on the tip of the alligator’s tail. SciShow is supported by Brilliant.org. Go to https://Brilliant.org/SciShow to get 20% off of an annual Premium subscription. Hosted by: Hank Green 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: Silas Emrys, Charles Copley, Jb Taishoff, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Christopher R Boucher, Eric Jensen, LehelKovacs, Adam Brainard, Greg, Ash, Sam Lutfi, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, 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: https://onlinelibrary.wiley.com/doi/abs/10.1002/9780470015902.a0001095.pub2 https://www.nature.com/articles/s41598-020-77052-8 https://www.sciencedaily.com/releases/2020/11/201123100952.htm https://www.ncbi.nlm.nih.gov/books/NBK21070/ Image Sources: https://www.istockphoto.com/photo/stranded-starfish-gm641584272-116229195 https://www.istockphoto.com/photo/zebra-fish-gm529402066-93256919 https://www.istockphoto.com/photo/axolotl-in-the-aquarium-gm533235106-94417029 https://www.istockphoto.com/photo/carolina-green-anole-lizard-and-reflection-gm829844516-135558993 https://www.istockphoto.com/photo/grass-snake-gm624626136-109809679 https://www.istockphoto.com/photo/blue-jay-in-fall-gm1191307973-338033081 https://www.istockphoto.com/photo/australian-shepherd-puppy-gm1130765875-299173268 https://www.istockphoto.com/photo/american-alligator-swimming-in-everglades-gm134544353-8994185 https://commons.wikimedia.org/wiki/File:Alligator_mississippiensis_2_babies.jpg https://www.nature.com/articles/s41598-020-77052-8 https://www.nature.com/articles/s41598-020-77052-8/figures/2 https://www.nature.com/articles/s41598-020-77052-8/figures/4 https://www.istockphoto.com/photo/wild-baby-alligators-everglades-national-park-gm1134581225-301530421 https://www.istockphoto.com/photo/close-up-snowy-owl-eye-with-wooden-background-gm986720632-267642242 https://www.istockphoto.com/photo/carolina-green-anole-lizard-gm829844540-135558989 https://www.istockphoto.com/photo/male-great-spotted-woodpecker-gm1189136390-336586470 https://www.istockphoto.com/photo/american-alligator-alligator-mississippiensis-gm973808230-264951484 https://commons.wikimedia.org/wiki/File:Macrospondylus_bollensis_Holzmaden.jpg