The Bizarre Evolution of Hemipenes

Visit 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. Snakes have two penises (aka hemipenes) that come in a diverse array of shapes and sizes. And they could owe it all to their lack of legs. Hosted by: Hank Green (he, him) Support SciShow by becoming a patron on Patreon: Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Matt Curls, Alisa Sherbow, Dr. Melvin Sanicas, Harrison Mills, Adam Brainard, Chris Peters, charles george, Piya Shedden, Alex Hackman, Christopher R, Boucher, Jeffrey Mckishen, Ash, Silas Emrys, Eric Jensen, Kevin Bealer, Jason A Saslow, Tom Mosner, Tomás Lagos González, Jacob, Christoph Schwanke, Sam Lutfi, Bryan Cloer Looking for SciShow elsewhere on the internet SciShow Tangents Podcast: TikTok: Twitter: Instagram: , SciShow, science, education, learning, complexly, snake, reptiles Sources: Image Sources: