Hyenas Once Lived in the Frigid Arctic

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=L0lNx8rX9HY

Prehistoric teeth prove that hyenas once roamed the Arctic and the relationship between ancient crocodiles and climate is more complicated than we thought. • 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: / scishow • ---------- • Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: • Adam Brainard, Greg, Alex Hackman, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters • ---------- • Looking for SciShow elsewhere on the internet? • Facebook: / scishow • Twitter: / scishow • Tumblr: / scishow • Instagram: / thescishow • ---------- • Sources: • Arctic Hyenas • http://dx.doi.org/10.5334/oq.64 • https://www.eurekalert.org/emb_releas... • https://www.sciencedirect.com/science... • https://trove.nla.gov.au/version/2483... • https://www.nps.gov/articles/beringia... • https://cdn.elifesciences.org/article... • Croc Climate Clocks • http://dx.doi.org/10.1080/02724634.20... • https://www.eurekalert.org/emb_releas... • https://www.sciencedirect.com/science... • https://www.nature.com/articles/ncomm... • http://www.palaeogeography.net/upload... • https://www.researchgate.net/publicat... • https://www.sciencedirect.com/science... • ------ • Images: • https://www.istockphoto.com/photo/spo... • https://www.istockphoto.com/photo/bro... • https://www.istockphoto.com/photo/str... • https://www.istockphoto.com/photo/aar... • https://www.istockphoto.com/photo/spo... • https://www.istockphoto.com/photo/nor... • https://en.wikipedia.org/wiki/File:Be... • https://www.eurekalert.org/multimedia... • https://www.eurekalert.org/multimedia... • https://www.istockphoto.com/photo/arg... • https://www.eurekalert.org/multimedia... • https://www.istockphoto.com/photo/sho... • https://www.istockphoto.com/photo/sma... • https://www.istockphoto.com/photo/adu... • https://commons.wikimedia.org/wiki/Fi... • https://commons.wikimedia.org/wiki/Fi... • https://www.videoblocks.com/video/cro... • https://www.videoblocks.com/video/all... • https://www.videoblocks.com/video/a-c... • https://www.videoblocks.com/video/gro... • https://www.istockphoto.com/photo/a-b... • https://www.istockphoto.com/photo/spo... • https://www.istockphoto.com/photo/spo... • https://www.istockphoto.com/photo/spo...

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