Why We Only Have Ten Toes (It's a Long Story)

Video Description

Check out our podcast Eons: Mysteries of Deep Time: http://ow.ly/2J4450Iu69U Today, all mammals from humans to bats have five fingers or fewer. Yes, even whales, whose finger bones are hidden in their fins. Birds have four or fewer and amphibians get the best of both worlds, often having four digits on their “hands” and five on their “feet.” But no species of vertebrates have more than five digits, let alone eight! Thanks to these paleoartists for allowing us to use their incredible work in this episode! Julio Lacerda: https://twitter.com/JulioTheArtist Fabrizio de Rossi: https://www.facebook.com/ArtofFabricious/ Franz Anthony: https://franzanth.com/ ***** PBS Member Stations rely on viewers like you. To support your local station, go to http://to.pbs.org/DonateEons ***** Produced by Complexly for Digital Studios Super special thanks to the following Patreon patrons for helping make Eons possible: Katherine Harriger, Karen Farrell, Trevor Long, Brett Clark, Raphael Haase, Lyndsey McGill, daniel blankstein, DY Corty, Ric, Casper Lubbers, Enya, Berenice Castro Huguez, Jason Rostoker, Jonathan Rust, Avery Sanford, Mary Tevington, Bart & Elke van Iersel - De Jong, Kip Obenauf, Jules Martineau, William Craig II, Tracey, James Dowling-Healey, Irene Wood, Derek Helling, Margaret Luby, WilCatRhClPPh33, Mark Talbott-Williams, Nomi Alchin, Michael Hof, Eric Roberto Rodriguez, Hillary Ryde-Collins, Frida, Yu Mei, Dan Ritter, 4th_phase, Jayme Coyle, Oscar Amoros Huguet, Patrick Wells, Aziza Ashling, GrowingViolet, Stephanie Tan, Nick Ryhajlo, Sean Dennis, John Pollock, Ben Cooper, Leonid, Robert Noah, Matt Parker, Heathe Kyle Yeakley, Jerrit Erickson, Anton Bryl, MissyElliottSmith, Zachary Spencer, Stefan Weber, Andrey, Merri Snaidman, Gabriel Cortez, Marcus Lejon, Todd Dittman, Betsy Radley, Anthony Philip Slingerland, John Vanek, Eric Vonk, Jon Monteiro, James Bording, Miles Chaston, Michael McClellan, Jeff Graham, Daisuke Goto, Gregory Kintz, Chandler Bass, Tsee Lee, Robert Hill If you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards! Want to follow Eons elsewhere on the internet? Facebook - https://www.facebook.com/eonsshow Twitter - https://twitter.com/eonsshow Instagram - https://www.instagram.com/eonsshow/ References: https://docs.google.com/document/d/1aNEkCZFljEb7WXt-ZmLFpefqbUrV5sDHFRaMEjgTRlE/edit?usp=sharing