Why Killer Whales Migrate (It's Not Why You Think)

Killer whales migrate thousands of kilometers across oceans, because it's good for their skin? 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:   / scishow   ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Kevin Bealer, Jacob, Katie Marie Magnone, D.A. Noe, Charles Southerland, Eric Jensen, Christopher R Boucher, Alex Hackman, Matt Curls, Adam Brainard, Scott Satovsky Jr, Sam Buck, Ron Kakar, Chris Peters, Kevin Carpentier, Patrick D. Ashmore, Piya Shedden, Sam Lutfi, Charles George, Christoph Schwanke, Greg ---------- Looking for SciShow elsewhere on the internet? Facebook:   / scishow   Twitter:   / scishow   Tumblr:   / scishow   Instagram:   / thescishow   ---------- Sources: https://www.sciencemag.org/news/2020/... https://onlinelibrary.wiley.com/doi/f... https://onlinelibrary.wiley.com/doi/1... https://books.google.co.nz/books?hl=e... https://www.sciencedirect.com/science... https://royalsocietypublishing.org/do... Image Sources: https://www.istockphoto.com/photo/you... https://www.videoblocks.com/video/hum... https://onlinelibrary.wiley.com/doi/f... https://www.istockphoto.com/photo/kil...