The Return of Giant Skin-Shell Sea Turtles

Feb 17, 2021
403 995 Views

The biggest turtle ever described wasn’t an ancestor of today’s leatherback turtles or any other living sea turtles. But it looks like there are some things about being a giant, skin-shelled sea turtle that just work, no matter where, or when, you lived.
Thanks to Ceri Thomas (, Nobu Tamura (, and Dmitry Bogdanov for allowing us to use their excellent paleoart in this video!
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  • It’s extremely racist to do a video on turtles

    Karl NordenstormKarl Nordenstorm8 hours ago
  • You totally loved the jokes 😜🤪

    Dave LunaDave LunaDay ago
  • I watched a documentary a few years ago and one thing has bothered me ever since. It said that the giant dragonflies from the Carbonifous survived into the Triassic. It said they survived the lowered oxygen levels by using their wings to improve the air movement round the spiracules. It failed to say how they got through the big dying because I cant imagine that working so well during that. Can you make a video on them and if they did survive please explain how thanks

    Samantha GibsonSamantha GibsonDay ago
  • What about Nile soft shelled turtles?

    ArcaninetyfourArcaninetyfour4 days ago
  • Another unnecessary change by the devs. Come on guys!

    culwinculwin4 days ago
  • I like the information about where the fossils are being found in relation to the indigenous people who live/lived there.

    ZakuNickZakuNick4 days ago
  • I like turtles We need to monitor beaches for a turtle nest so that conservationist can prevent to rest from donking around and hurting the eggs

    Tom CurlTom Curl5 days ago
  • I like turtles

    Gino ValeraGino Valera5 days ago
  • I love that PBS Eons recognizes and mentions the Indigenous peoples whose land many discoveries are found on, but I think it would be even more awesome if the shout out was made at the beginning of the video! :)

    SloaneSloane5 days ago
  • i love this videos thanks all incredible profissionals from this chanel

    denunci mesmodenunci mesmo6 days ago
  • Please do a video about the evolution of legless lizards like the sheltopusik.

    Kieran CallahanKieran Callahan6 days ago
  • Always great videos coming from Eons.

    Matt GMatt G6 days ago
  • CLIMATE CHANGE! All those damn suvs of the Cretaceous.

    Drew Brees is on TRT so is Tom bradyDrew Brees is on TRT so is Tom brady6 days ago
  • Thanks for adding a statement of recognition at the end of the video to address indigenous people!

    Arianna BuehlerArianna Buehler6 days ago
  • Pennywise disliked the video

    Justin Y's pet DragonJustin Y's pet Dragon6 days ago
  • I hope that they make a episode about diplocalus or as I like to refer to it as fluffy the boomerang head

    Dylan HoffmanDylan Hoffman6 days ago
  • So giant sea turtles arent back? Thanks for the clickbait. You bought yourself a thumbs down!

    Ridgecrest WackRidgecrest Wack6 days ago
  • Could you do one on when birds first sang?

    Abigail HelmkeAbigail Helmke6 days ago
  • It was great to watch! I dream of ever having the same audience on my channel as you do. I would be honored if you would come over to see me on the channel and rate any of the videos! :)

    WHYWHY6 days ago
  • So 15% survived the first extinction, of that 15% you have to eliminate 75%, of what you have left, eliminate 95% again, of that rest eliminate 80% again, of that rest eliminate 76% again .... tell me if your evolution math makes sense?

    AeshmaAeshma6 days ago
  • So... no evolution for turtles ... they only appeared because they magically appeared.... nice...🤣🤣🤣

    AeshmaAeshma6 days ago
    • @John Thumble don't worry, I understand perfectly why your education is so mediocre

      AeshmaAeshma5 days ago
    • @John Thumble ok .. late Ordovician, 85% of all animals are eliminated ... 66 million years and a second extinction , of the 15% that survived the first this time 75% are eliminated, 349 million years later it is eliminated 95% again of all the animals on the planet, ... 50 million years and of that only 5% survived in Permian, 80% in the Jurassic disappeared... another extinction and another extinction ... can you tell me if the animals had accelerated growth in evolution ... because you are playing with several extinctions starting from the first one that only left 15% ...

      AeshmaAeshma5 days ago
    • @John Thumble please, you don't have to cry

      AeshmaAeshma5 days ago
    • @John Thumble So 15% survived the first extinction, of that 15% you have to eliminate 75%, of what you have left, eliminate 95% again, of that rest eliminate 80% again, of that rest eliminate 76% again .... tell me if your evolution math makes sense?

      AeshmaAeshma5 days ago
    • @Aeshma oh you're a I understand why you're so slow ..

      John ThumbleJohn Thumble5 days ago
  • Question: why do they refer to the circular bones as “ossicles” and not “scutes?” An ossicle is just any small bone, so why not be more specific? Are those bones not considered scutes?

    Jordan StatesJordan States6 days ago
  • So there IS hope for this world? Awesome!

    CosplayMemories14CosplayMemories147 days ago
  • Don't diss turtle speed. They go way faster than you expect. Tortoises are pretty slow though...

    JeffreyJeffrey7 days ago
  • Tortoise

    invaso dallo spirito oscuroinvaso dallo spirito oscuro7 days ago
    • Tortoise ≠ turtle

      nineball039nineball0397 days ago
  • My favourite part is when he *didn't* go "Know what's more badass than the Archelon? THE NEW FREE CHAMPION IN RAID SHADOW LEGENDS"

    Zarah AndrahildeZarah Andrahilde7 days ago
  • Return to turtul

    King NothingKing Nothing7 days ago
  • I'm waiting for cimolesta episode

    WTF27plWTF27pl8 days ago
  • I notice there is lots of great art PBS Eons use. I assume you work alongside the artists & have their permission as I cant see anywhere that notes the creators of the many forms of art you use?

    E QE Q8 days ago
  • Suggestion:ediacaran

    TB77TB778 days ago
  • love the turtle videos

    Rip TideRip Tide8 days ago
  • Where's Steve?

    Lame Jackson 03Lame Jackson 038 days ago
  • I would love to have a couple in my salt water aquarium. 👍

    John JohansenJohn Johansen8 days ago
  • Suggestion for an episode, when/how did hearing develop?

    James CadJames Cad8 days ago
  • We love a channel who speaks on indigenous respect

    Aspen EdwardsAspen Edwards8 days ago

    Sarah BannerSarah Banner8 days ago
  • Asking again for a closer look at the former "prosauropods" and how we think they're actually related now. Or, perhaps, a rundown on all major prehistoric aquatic reptiles (including whatever Nothosaurus was, or mostly just Nothosaurus).

    BioniclesaurKing4t2BioniclesaurKing4t28 days ago

    Juan Pablo Maldonado GarciaJuan Pablo Maldonado Garcia8 days ago
  • Another great video.

    Dread PirateDread Pirate8 days ago
  • Thank you for the funnies! :)

    Michele CoxMichele Cox8 days ago
  • WhY DiD EarTh cOPy ark SrVIvaL11!!1!!1!!1!1!1!1!!1😠😠😠😠😠😠😠😠🤬🤬😠🤬😠

    humayun morsheadhumayun morshead8 days ago
  • Archelon's outline in 0:22 looks like the adamantoise in ff4

    denairasamadenairasama8 days ago
  • *I like turtles.*

    NethNeth8 days ago
  • I don’t get it

    fredireckofredirecko9 days ago
  • i thought they came back from extinction :( thats y i clicked on the video

    Brad LeeBrad Lee9 days ago
  • May be megalodon was specialised to prey on such turtles and giants prehistoric seals. With his food source extinct, so did megalodon.

    Davis JugroopDavis Jugroop9 days ago
  • Thank you convergent evolution

    primatology grad UPennprimatology grad UPenn9 days ago
  • I miss Steve :(

    dragonspightdragonspight9 days ago
  • It's not a TURTLE!!!

    Jack BlackJack Black9 days ago
    • @nineball039 i can't tell you

      Jack BlackJack Black7 days ago
    • What is it then?

      nineball039nineball0397 days ago
  • I like turtles

    Chop LopChop Lop9 days ago
  • i love this dude

    nasty fishnasty fish9 days ago
  • Are these turtles big enough to ride?

    Artist Cat / BrushPawArtist Cat / BrushPaw9 days ago
  • How about an episode on the extinct Bluebuck antelope? I feel like there aren’t many high quality videos about this extinct species. You could relate it too how we can determine the genetic relationships of extinct animals with living species.

    Andrew MazzaAndrew Mazza9 days ago
  • I dont even believe in sea turtles

    Weasel FartoodWeasel Fartood9 days ago
    • (Please don't drink seawater)

      Artist Cat / BrushPawArtist Cat / BrushPaw8 days ago
    • they are there, trust me, this is just a testing time on your faith, drink seawater to help

      crazy cracker chickencrazy cracker chicken8 days ago
    • Have faith in the turtles, the turtles won’t let you down.

      Artist Cat / BrushPawArtist Cat / BrushPaw9 days ago
  • I bet crush from finding Nemo would have said Right on dude you rock bro

    Tyler ButlerTyler Butler9 days ago
  • Interesting. Thank you.

    Max De PasqualeMax De Pasquale9 days ago
  • Giant turt.

    fancydeerfancydeer9 days ago
  • 🐢

    A TurtleA Turtle9 days ago
  • BACK???!!

    Casa DomeCasa Dome9 days ago
  • 1200 meters is a long way to dive.

    Nathaniel AndersonNathaniel Anderson9 days ago
  • the tully monster transition is actually really cool props to the editor

    SomnusSomnus9 days ago
  • it's turtles all the way down

    cphauracphaura9 days ago
  • turtally XD

    PatrikPatrik9 days ago
  • where do i know this actor from?

    thecursed01thecursed019 days ago
  • I would love a video following every ancestor or possible ancestor of humans to show, in a straight-ish "line," how we grew from prokaryotes to what we are now, with each step in between.

    Vampireax XVampireax X9 days ago
  • For giant leatherbacks still around visit Galibi, Suriname. You can observe them nesting at night. Just make sure you visit during the nesting period (obviously)

    Gianni WipGianni Wip9 days ago
  • wow! its almost as if the climate changes

    BubbyBubby9 days ago
  • I love watching the show it makes me feel like a kid all over again

    Michael NunnMichael Nunn10 days ago
  • Fun fact baby sea turtles shells are really soft, kinda like thin leather gloves... also sea eagles eat all of a baby sea turtle except the shell...

    Boras RavenBoras Raven10 days ago
    • @Boras Raven I assume, that would be a no.

      Artist Cat / BrushPawArtist Cat / BrushPaw8 days ago
    • Lol sure the same way bald eagle is another name for seagull too.

      Boras RavenBoras Raven8 days ago
    • I assume “sea eagles” is another name for “seagulls”.

      Artist Cat / BrushPawArtist Cat / BrushPaw9 days ago
  • "Body plans that just work" ah yes like crabs

    zXHipoXzzXHipoXz10 days ago
  • Bring back the pbs eons shirt with the pocket. I wasn't a fan and had no money at the time! Also 10 bucks for a pin is a bit steep, but I collect pins so whatever

    Jaycee WilliamsJaycee Williams10 days ago
  • I miss hearing "...And Steve..." At the end of names. Hope he's doing ok...

    Lainey BugLainey Bug10 days ago
  • Crap

    J DJ D10 days ago
    • You drop something? About 21 hours ago?

      Artist Cat / BrushPawArtist Cat / BrushPaw9 days ago
  • I'm assuming this thing has elephants on it's back. Also I think this triggers Pennywise the Clown

    Ed DEd D10 days ago
  • Anyone else remember that walking with dinosaurs episode where he tried to swim with one and almost died?

    PilotAnenome 372PilotAnenome 37210 days ago
  • Man sea turtles are awesome!

    Joseph GustafsonJoseph Gustafson10 days ago
    • That’s a fact, not an opinion.

      Artist Cat / BrushPawArtist Cat / BrushPaw9 days ago
  • You wonder why there was an explosion of population animals always find a way to survive. Their first shot at this was as you say the late Cretaceous period when smaller turtle expanded to fill the niche left behind when the big ones are gone. It's sort of the way coyotes filled the niche the wolf left,when it was almost eradicated from the lower 48. They have been almost completely wiped out in the eastern US. Everywhere there are coyotes there were once wolves. Same with the sea turtles.

    Mike 1958Mike 195810 days ago
  • Steve! The jeans and jacket look is a very hip but classy look for you.

    Tri CeratopsTri Ceratops10 days ago
  • I wonder if in the distant future another animal will take a form similar to humans.

    MrEmoImoMrEmoImo10 days ago
  • Nature likes to reuse things alot! 'This worked here, so let's try here!' Lol.

    crazycatlady39crazycatlady3910 days ago
  • Big bois

    Omega TurtleOmega Turtle10 days ago
  • Blathers told me all about this fine turtle.

    Mr. XMr. X10 days ago
    • I’d your fossil section of the museum complete?

      Artist Cat / BrushPawArtist Cat / BrushPaw9 days ago
  • im fascinated by bodyplans that come up again and again but it always makes me wonder about what the most unique bodyplans in the animal kingdom are/have been

    savannah sylkensavannah sylken10 days ago
  • Heroes in a skin shell Turtle power

    KTVX.94KTVX.9410 days ago
  • Sometimes I look up at the stars at night and wonder if jellyfish taste spicy to sea turtles.

    Nick SNick S10 days ago
  • Huge respect for acknowledging native peoples rights

    Riley KnealeRiley Kneale10 days ago
  • It's really nice you recognise first nation's rights to their lands.

    Cristina Martiño RomeroCristina Martiño Romero10 days ago
  • Today's phrase is, "convergent evolution."

    Nick HentschelNick Hentschel10 days ago
  • Still covering those guns, eh?

    elmoheadelmohead10 days ago
  • Hope people didn't illegally throw away their giant straw

    Blaxx MAOBlaxx MAO10 days ago
  • A friend

    Uhh AhhUhh Ahh10 days ago
  • I miss "and Steve".

    jedi foghornjedi foghorn10 days ago
  • Eeey I know those from animal crossing

    AIDANAIDAN10 days ago
  • I’m always so happy when you are the host of the videos. You’re my favorite

    Fishice FishniceFishice Fishnice10 days ago
  • This reminds me of dinosaur train. The cadance, the visuals, the old animals, dang

    Water DragonWater Dragon10 days ago
  • That dino joke was amusing.

    ShadowFoxSFShadowFoxSF10 days ago
  • I love sea turtles. Ty

    Debbie King TampaDebbie King Tampa10 days ago
  • to quote that boy that became a meme, I like turtles

    Cristian Verdugo GalazCristian Verdugo Galaz10 days ago
  • Yeah today journals are sort of endanger sea turtles like the letter back should be protected all cost fascinated by these prehistoric turtles days to be big

    Jason SantosJason Santos10 days ago
  • i like turtles turtles ma favorite nothing beats a jelly filled turtle

    Brenden MorrisonBrenden Morrison10 days ago