SciShow: 3 Fish With Built-In Flashlights

Teacher or professor: SciShow
Subject: Science
Content of the Lesson: If we want to see more clearly in the dark, we shine a light - but we aren't the only species that does that. Some fish use active photolocation to shine their own light in the deep sea! Hosted by: Michael Aranda 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: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Jb Taishoff, Bd_Tmprd, Harrison Mills, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Sam Buck, Christopher R Boucher, Eric Jensen, Lehel Kovacs, Adam Brainard, Greg, Ash, Sam Lutfi, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, charles george, Alex Hackman, Chris Peters, Kevin Bealer ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://doi.org/10.1098/rspb.2019.2292 https://doi.org/10.1038/s41598-019-44529-0 https://doi.org/10.1098/rsos.170838 https://doi.org/10.1098/rsos.161009 https://doi.org/10.1371/journal.pone.0198765 https://doi.org/10.1371/journal.pone.0170489 https://doi.org/10.1016/0042-6989(92)90191-K https://doi.org/10.1371/journal.pone.0219852 https://doi.org/10.1111/j.1096-3642.1988.tb00882.x https://doi.org/10.1371/journal.pone.0155154 https://doi.org/10.1007/s00227-005-0085-3 https://doi.org/10.1038/30871 https://doi.org/10.1016/S0042-6989(98)00332-0 Image Sources: https://www.eurekalert.org/multimedia/pub/117062.php?from=329582 https://commons.wikimedia.org/wiki/File:Photostomias.jpg https://www.eurekalert.org/multimedia/pub/117061.php?from=329582 https://www.eurekalert.org/multimedia/pub/202379.php?from=431363 https://www.eurekalert.org/multimedia/pub/237392.php?from=470560 https://commons.wikimedia.org/wiki/File:Malacosteus.svg https://eol.org/media/6152301 https://eol.org/media/7712362 https://www.inaturalist.org/observations/5857684 https://commons.wikimedia.org/wiki/File:Tripterygion_delaisi_Koufonissi.JPG https://commons.wikimedia.org/wiki/File:Tripterygion_delaisi.jpg https://commons.wikimedia.org/wiki/File:Tripterygion_delaisi_m%C3%A2le_et_femelle.jpg https://royalsocietypublishing.org/doi/10.1098/rsos.170838 https://royalsocietypublishing.org/doi/full/10.1098/rspb.2019.2292 https://www.nature.com/articles/s41598-019-44529-0/figures/1 https://www.eurekalert.org/multimedia/pub/132256.php?from=349351 https://www.eurekalert.org/multimedia/pub/208679.php?from=438323 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0170489 https://commons.wikimedia.org/wiki/File:Anomalops_sp.jpg https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0170489 https://commons.wikimedia.org/wiki/File:NOAA_Deep_Light_diagram3.jpg https://commons.wikimedia.org/wiki/File:Thai_cats_eyeshine.JPG


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