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Gross Science

Sea Cucumbers Have Multipurpose Butts

January 10, 2017

Meet the most versatile butts in the animal kingdom. Subscribe to Gross Science! http://bit.ly/1FkxVLb ‖ Twitter! https://twitter.com/gross_science ‖ Tumblr! http://grossscience.tumblr.com/ ↓Want more gross info?↓ (Primary Literature) The anus as a second mouth: anal suspension feeding by an oral deposit-feeding sea cucumber: http://bit.ly/2ibnzXa (Primary Literature) Mechanisms involved in pearlfish resistance to holothuroid toxins: http://bit.ly/2ibg4z8 (Primary Literature) When a repellent becomes an attractant: harmful saponins are kairomones attracting the symbiotic Harlequin crab: http://go.nature.com/2ibltGv -- Host, Writer, Editor, Animator Anna Rothschild Camera, Sound Zachary Hoffman Welcome to the Circus a Music Provided by APM Original Footage ©WGBH Educational Foundation 2017 GROSS FOOTAGE AND IMAGES Images of Sea Cucumber Butts By Klaus M. Stiefel Graceful pearlfish (Encheliophis gracilis) living inside sea cucumber (Bohadschia argus) on reef, West Papua, Indonesia Getty Images/BBC Natural History A common, large sea cucumber (Bohadschia argus) is easy to identify due to its distinctive pattern. This species can extrude sticky defensive threads called cuverian tubules. Shutterstock/Ethan Daniels Cloaque Femelle Wikimedia Commons/Au Domaine des 3 Coqs Swimming Crab - Lissocarcinus Orbicularis on Sea Cucumber Wikimedia Commons/Prilfish Lissocarcinus orbicularis LandaaGiraavaru Wikimedia Commons/MDC Seamarc Pseudocolochirus axiologus Wikimedia Commons/Marrabbio2 Pearsonothuria graeffei bouche Wikimedia Commons/Frédéric Ducarme GROSS SFX Cockroaches Freesound/StateAardvark­ (used with permission from author) Squeak Pack/squeak_10 Freesound/Corsica_S Gross Science is produced by WGBH for PBS Digital Studios



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