When Ichthyosaurs Led a Revolution in the Seas

  • Published on: 25 June 2019
  • The marine reptiles Ichthyosaurs arose after The Great Dying, which wiped out at least 90 percent of life in the oceans, changing the seas forever and triggering a new evolutionary arms race between predator and prey.

    Thank you to these paleoartists for allowing us to use their wonderful illustrations:
    Julio Lacerda: https://252mya.com/gallery/julio-lacerda
    Ceri Thomas: http://alphynix.tumblr.com/
    Dmitry Bogdanov: https://www.deviantart.com/dibgd
    Nobu Tamura: https://spinops.blogspot.com/
    Franz Anthony: https://252mya.com/gallery/franz-anthony
    Nikolay Zverkov: https://www.deviantart.com/ngzver

    Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

    Super special thanks to the following Patreon patrons for helping make Eons possible:

    Katie Fichtner, Anthony Callaghan, Zachary Spencer, Stefan Weber, Ilya Murashov, Charles Kahle, Robert Amling, Po Foon Kwong, Larry Wilson, Merri Snaidman, Renzo Caimi Ordenes, John Vanek, Neil H. Gray, Esmeralda Rupp-Spangle, Gregory Donovan, الخليفي سلطان, Gabriel Cortez, Marcus Lejon, Robert Arévalo, Robert Hill, Todd Dittman, Betsy Radley, PS, Philip Slingerland, Jose Garcia, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Daisuke Goto, Hubert Rady, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Alex Yan

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  • Runtime : 9:58
  • dinosaurs dinos paleo paleontology scishow eons pbs pbs digital studios hank green john green complexly fossils natural history Ichthyosaurs The Great Dying Californosaurus Mesozoic Era Mary Anning Mesozoic Marine Revolution Mixosaurus Shonisaurus Triassic-Jurassic mass extinction thunniform locomotion anoxic event Phalarodon Temnodontosaurus Tholodus lizard reptile


  • Emblazened
    Emblazened   1 days ago

    2:21 Thank you for the Bill Wurtz.

  • 3die3ra
    3die3ra   1 days ago

    From what I see i believe that's a dolphin

  • LucasWerewolf
    LucasWerewolf   2 days ago

    I find these on land cause they have a tendency to beach them self and die..

  • HardToMell o
    HardToMell o   3 days ago

    Are nautilus dinosaurs or did they come after the asteroid

  • Richard Deese
    Richard Deese   4 days ago

    We're a pair of flippers and you really can't ignore usA dorsal fin & a tail fluke sure are handy & they wouldn't bore usAnd if you're a reptile with these thingsYou're Californosaurus Thanks! :o) 𝓡𝓲𝓴𝓴𝓲 𝓣𝓲𝓴𝓴𝓲.

  • Mystic Legion
    Mystic Legion   4 days ago

    It's funny how these documentaries talk like they know exactly what happened and how they lived back then. Now we are starting to figure out dinosaurs were covered in feathers but we are suppose to believe what u guys are saying right? Lol.

  • M12GProductions
    M12GProductions   4 days ago

    The Ichthyosaur revolution will NOT be televised, cuz TV didn't exist back then.

  • artificus
    artificus   1 weeks ago

    This voice ... It sounds like TREY the Explainer .... O__O

  • totalfreedom45
    totalfreedom45   1 weeks ago

    According to the WWF there may be 100 million species. With a yearly extinction rate of 0.01% at least 10,000 are gone a year. Could there be another Great Dying (1:52)? Unlike that extinction the one going on now seems to be caused mostly by Homo sapiens sapiens.  😱 😭

  • Ahoy Hoy
    Ahoy Hoy   1 weeks ago

    Why is the host saying ichthyosaurus and not ichthyosaur?

  • Sylvia Else
    Sylvia Else   1 weeks ago

    They lasted for 157 million years, but my ancestors from the start of that time still have living descendants, so who was the better survivor?

  • Positivity
    Positivity   1 weeks ago

    I feel i this comment is dumb because the others are intellectual in a way but when i was younger i liked ichthyosaurs i didnt know why because there were veloceraptors and the tyrannosaurus rex but i stuck with the ichthyosaur and now i know whyEdit: i love the fact that he did the cambrian explosion it was great

  • Nor Adrenalin
    Nor Adrenalin   1 weeks ago

    Are we just going to ignore how goddamn cute this lizard-seal is?

  • Verum
    Verum   2 weeks ago

    4:34 that comment "that's usually what I do" caught me so off guard lolThe way he says it is so casual, it's hilarious

  • Danforth Paleontologist

    The people in the comment section confuse me greatly.Also... great dying happens...June Wayne voice:”MORTALITY CLARIFIED IN A SINGLE STRIKE!”

  • jugadug
    jugadug   2 weeks ago

    what is interesting to me is the large eyes shows that the dived really deep and spent along time down there considering the would have breathe air that is amazing sperm whales do the same but they did it first

  • Sqlteh
    Sqlteh   3 weeks ago

    Where was this when I needed it for my science project.. 😑

  • Mr Red
    Mr Red   3 weeks ago

    Hhhhhhh revolution

  • Jaycee Williams
    Jaycee Williams   3 weeks ago

    What counts at reptiles since those extremely fish like animals are classified as reptiles

  • Eric Cedrick Slingby
    Eric Cedrick Slingby   3 weeks ago

    Cartorhyncus is friend shaped. I'm gonna make a pattern and sew up like 10.

  • Ryan Borganson
    Ryan Borganson   3 weeks ago

    "So long and thanks for all the fish" -you either get the reference or you dont lol.

  • Josh Dukes
    Josh Dukes   3 weeks ago

    Hey guys! Just FYI the link you're using for Facebook on the videos doesn't work. it looks like this is the correct link: https://www.facebook.com/EonsPBS/

  • isaiah wolftail
    isaiah wolftail   4 weeks ago

    I like these prehistoric fish because of the dinosaurs movie of the 2000's. It told stories about multiple dinosaur species from the giants flying across seas to mate n other little ones trying to survive the long dark winter nights.

  • Party'le'Swine
    Party'le'Swine   4 weeks ago

    Could you do a video on the lide style of the Flesh Eating Bull, Carnotaurus?

  • charjl
    charjl   4 weeks ago

    The reptilian equivalent of dolphins? Weird