Go to Brilliant.org/SciShow to try out Brilliant’s Daily Challenges. The first 200 subscribers get 20% off an annual Premium subscription. It seems obvious that animals need oxygen to live, but deep in the Mediterranean Sea there is a very small animal that might be doing just fine without any oxygen at all. Hosted by: Olivia Gordon SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/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: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: bmcbiol.biomedcentral.com/articles/10.1186/1741-7007-8-30 www.bbc.com/earth/story/20170125-there-is-one-animal-that-seems-to-survive-without-oxygen www.khanacademy.org/science/biology/cellular-respiration-and-fermentation/variations-on-cellular-respiration/a/fermentation-and-anaerobic-respiration bmcbiol.biomedcentral.com/articles/10.1186/s12915-015-0213-6 bmcbiol.biomedcentral.com/articles/10.1186/s12915-016-0263-4 ------ Images: www.istockphoto.com/vector/animal-cell-cut-away-gm509687577-46348134 commons.wikimedia.org/wiki/File:Streptococcus_mutans_01.jpg www.istockphoto.com/vector/mediterranean-basin-political-map-gm633687196-112321293 commons.wikimedia.org/wiki/File:Pliciloricus_enigmatus.jpg bmcbiol.biomedcentral.com/articles/10.1186/1741-7007-8-30 www.eso.org/public/videos/eso0939b/

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