True Facts: The Curious Adaptations of Sharks

Go to to get a 30-day free trial the first 200 people will get 20% off their annual subscription. merch: patreon: classical music: sponsor music: Special Thanks to: Save Our Seas Foundation, Dr Barbara E. Wueringer, Sharks and Rays Australia In Australia please report your sawfish sightings to  Dr George Lauder, Harvard University, Jonathan R. Green, Dr David Gruber, Dr Andrew Chin, James Cook University Dr Dean Grubbs, Florida State University Dr Brooke Flammang, New Jersey Institute of Technology Marco Carè : TGI Maldives-TGI Halaveli Anna & Ned DeLoach, ZooWild YouTube, @Zoo_Wild Florida Scuba Divers, @FloridaScubaDivers Julie Higgs, @JulieHiggs_Spearfishing WizardBeaver, @wizardbeaver Fat Fish Movies, @FatFishMovies AboveDeck, Rdearphotography, NOAA Smithsonian Institute Airflow across a wing: Citations Amir Akbarzadeh & Borazjani Iman - Controlling flow separation using traveling wave actuation. Ouro, Pablo & Stoesser, Thorsten & Ramirez, Luis. (2018). Effect of Blade Cambering on Dynamic Stall in View of Designing Vertical Axis Turbines. Journal of Fluids Engineering. 140. 061104. Domel AG, et al. Shark skin-inspired designs that improve aerodynamic performance. J R Soc Interface. 2018 Feb;15(139):20170828. doi: Duchatelet, Laurent & Marion, Raphaël & Mallefet, Jérôme. (2021). A Third Luminous Shark Family: Confirmation of Luminescence Ability for Zameus squamulosus (Squaliformes; Somniosidae). Photochemistry and photobiology. 97. Du Clos KT et al. Passive bristling of mako shark scales in reversing flows. J R Soc Interface. 2018 Oct 24;15(147):20180473. doi:   Gruber, D., Loew, E., Deheyn, D. et al. Biofluorescence in Catsharks : Fundamental Description and Relevance for Elasmobranch Visual Ecology. Sci Rep 6, 24751 (2016). Josberger EE et al. Proton conductivity in ampullae of Lorenzini jelly. Sci Adv. 2016 May 13;2(5):e1600112. doi: Kempster RM, Hart NS, Collin SP. Survival of the stillest: predator avoidance in shark embryos. PLoS One. 2013;8(1):e52551. doi:   Mallefet, Jérôme et al. (2021). Bioluminescence of the Largest Luminous Vertebrate, the Kitefin Shark, Dalatias licha. Frontiers in Marine Science. 8. Park HB et al. Bright Green Biofluorescence in Sharks Derives from Bromo-Kynurenine Metabolism. iScience. 2019 Sep 27;19:1291-1336. doi: Payne, N., Iosilevskii, G., Barnett, A. et al. Great hammerhead sharks swim on their side to reduce transport costs. Nat Commun 7, 12289 (2016). Rohner CA, et al. Laser photogrammetry improves size and demographic estimates for whale sharks. PeerJ. 2015 Apr 7;3:e886. doi: Sato, Keiichi, et al; How great white sharks nourish their embryos to a large size: evidence of lipid histotrophy in lamnoid shark reproduction. Biol Open 15 September 2016; 5 (9): 1211–1215. doi:  Sims DW, et al. Circles in the sea: annual courtship “torus“ behaviour of basking sharks Cetorhinus maximus identified in the eastern North Atlantic Ocean. J Fish Biol. 2022 Nov;101(5):1160-1181. doi:   Tomita, Taketeru et al. (2018). Locomotion is not a privilege after birth: Ultrasound images of viviparous shark embryos swimming from one uterus to the other. Ethology. 125. Tomita T, Murakumo K, Komoto S, Dove A, Kino M, Miyamoto K, Toda M. Armored eyes of the whale shark. PLoS One. 2020 Jun 29;15(6):e0235342. doi:   Weigmann S, Kaschner CJ, Thiel R. A new microendemic species of the deep-water catshark genus Bythaelurus (Carcharhiniformes, Pentanchidae) from the northwestern Indian Ocean, with investigations of its feeding ecology, generic review and identification key. PLoS One. 2018 Dec 12;13(12):e0207887. doi: Williams LH et al. Sharks as exfoliators: widespread chafing between marine organisms suggests an unexplored ecological role. Ecology. 2022 Jan;103(1):e03570. doi: Wueringer, Barbara al. The function of the sawfish’s saw, Current Biology, Volume 22, Issue 5, 2012, Pages R150-R151, ISSN 0960-9822,