Go to Brilliant.org/SciShow to try out Brilliant’s Daily Challenges. The first 200 subscribers get 20% off an annual Premium subscription. Deep in the Indian Ocean, scientists have discovered a snail whose feet are covered in iron scales, but how it builds these scales is a bit of a mystery. 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: Avi Yashchin, Adam Brainard, Greg, Alex Hackman, Sam Lutfi, D.A. Noe, 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: academic.oup.com/mollus/article/81/3/322/1087877 www.researchgate.net/publication/8576239_Novel_Forms_of_Structural_Integration_between_Microbes_and_a_Hydrothermal_Vent_Gastropod_from_the_Indian_Ocean science.sciencemag.org/content/302/5647/1007 www.iucnredlist.org/species/103636217/103636261 www.sciencedirect.com/science/article/pii/S0012821X05008058 www.pnas.org/content/107/3/987 ---------- Images: en.wikipedia.org/wiki/File:Chrysomallon_squamiferum_2.png en.wikipedia.org/wiki/File:Chrysomallon_squamiferum_map_2.png en.wikipedia.org/wiki/File:Three_populations_of_Chrysomallon_squamiferum.jpg commons.wikimedia.org/w/index.php?title=File%3ADiscovery-of-New-Hydrothermal-Activity-and-Chemosynthetic-Fauna-on-the-Central-Indian-Ridge-at-pone.0032965.s001.ogv en.wikipedia.org/wiki/File:Chrysomallon_squamiferum_9.png

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