The Return of Giant Skin-Shell Sea Turtles

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!
Produced in collaboration with PBS Digital Studios:
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  1. Bebe Cannual Bungdon

    Bebe Cannual Bungdon33 minutes ago

    Hahaha I never believe in science's theory. most of them r fiction n assumption.

  2. silverkleptofox

    silverkleptofox2 days ago

    Thank you all so much for making this program. I went to parochial school so my education did not have anything about evolution whatsoever. I get to learn and catch up with the rest of the population!

  3. Bacon Man

    Bacon Man2 days ago

    Giant turtle

  4. Dave Luna

    Dave Luna5 days ago

    You totally loved the jokes 😜🤪

  5. Kitty Gaming

    Kitty Gaming16 hours ago


  6. Samantha Gibson

    Samantha Gibson5 days 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

  7. Arcaninetyfour

    Arcaninetyfour8 days ago

    What about Nile soft shelled turtles?

  8. culwin

    culwin8 days ago

    Another unnecessary change by the devs. Come on guys!

  9. ZakuNick

    ZakuNick9 days ago

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

  10. Tom Curl

    Tom Curl9 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

  11. Gino Valera

    Gino Valera9 days ago

    I like turtles

  12. Sloane

    Sloane9 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! :)

  13. denunci mesmo

    denunci mesmo10 days ago

    i love this videos thanks all incredible profissionals from this chanel

  14. Kieran Callahan

    Kieran Callahan10 days ago

    Please do a video about the evolution of legless lizards like the sheltopusik.

  15. Matt G

    Matt G10 days ago

    Always great videos coming from Eons.

  16. Drew Brees is on TRT so is Tom brady

    Drew Brees is on TRT so is Tom brady10 days ago

    CLIMATE CHANGE! All those damn suvs of the Cretaceous.

  17. Arianna Buehler

    Arianna Buehler10 days ago

    Thanks for adding a statement of recognition at the end of the video to address indigenous people!

  18. Justin Y's pet Dragon

    Justin Y's pet Dragon10 days ago

    Pennywise disliked the video

  19. Dylan Hoffman

    Dylan Hoffman10 days ago

    I hope that they make a episode about diplocalus or as I like to refer to it as fluffy the boomerang head

  20. Ridgecrest Wack

    Ridgecrest Wack10 days ago

    So giant sea turtles arent back? Thanks for the clickbait. You bought yourself a thumbs down!

  21. Abigail Helmke

    Abigail Helmke10 days ago

    Could you do one on when birds first sang?

  22. WHY

    WHY10 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! :)

  23. Aeshma

    Aeshma10 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?

  24. Aeshma

    Aeshma10 days ago

    So... no evolution for turtles ... they only appeared because they magically appeared.... nice...🤣🤣🤣

  25. Aeshma

    Aeshma9 days ago

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

  26. Aeshma

    Aeshma9 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% ...

  27. Aeshma

    Aeshma9 days ago

    @John Thumble please, you don't have to cry

  28. Aeshma

    Aeshma9 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?

  29. John Thumble

    John Thumble9 days ago

    @Aeshma oh you're a I understand why you're so slow ..

  30. Jordan States

    Jordan States11 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?

  31. CosplayMemories14

    CosplayMemories1411 days ago

    So there IS hope for this world? Awesome!

  32. Jeffrey

    Jeffrey11 days ago

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

  33. Invaded by dark spirit Knight Slayer Tsorig!

    Invaded by dark spirit Knight Slayer Tsorig!11 days ago


  34. nineball039

    nineball03911 days ago

    Tortoise ≠ turtle

  35. Zarah Andrahilde

    Zarah Andrahilde11 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"

  36. King Nothing

    King Nothing11 days ago

    Return to turtul

  37. WTF27pl

    WTF27pl12 days ago

    I'm waiting for cimolesta episode

  38. E Q

    E Q12 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?

  39. TB77

    TB7712 days ago


  40. Rip Tide

    Rip Tide12 days ago

    love the turtle videos

  41. Lame Jackson 03

    Lame Jackson 0312 days ago

    Where's Steve?

  42. John Johansen

    John Johansen12 days ago

    I would love to have a couple in my salt water aquarium. 👍

  43. James Cad

    James Cad12 days ago

    Suggestion for an episode, when/how did hearing develop?

  44. Aspen Edwards

    Aspen Edwards12 days ago

    We love a channel who speaks on indigenous respect

  45. Sarah Banner

    Sarah Banner12 days ago


  46. BioniclesaurKing4t2

    BioniclesaurKing4t212 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).

  47. Juan Pablo Maldonado Garcia

    Juan Pablo Maldonado Garcia12 days ago


  48. Dread Pirate

    Dread Pirate12 days ago

    Another great video.

  49. Michele Cox

    Michele Cox12 days ago

    Thank you for the funnies! :)

  50. humayun morshead

    humayun morshead13 days ago

    WhY DiD EarTh cOPy ark SrVIvaL11!!1!!1!!1!1!1!1!!1😠😠😠😠😠😠😠😠🤬🤬😠🤬😠

  51. denairasama

    denairasama13 days ago

    Archelon's outline in 0:22 looks like the adamantoise in ff4

  52. Neth

    Neth13 days ago

    *I like turtles.*

  53. fredirecko

    fredirecko13 days ago

    I don’t get it

  54. Brad Lee

    Brad Lee13 days ago

    i thought they came back from extinction :( thats y i clicked on the video

  55. Davis Jugroop

    Davis Jugroop13 days ago

    May be megalodon was specialised to prey on such turtles and giants prehistoric seals. With his food source extinct, so did megalodon.

  56. primatology grad UPenn

    primatology grad UPenn13 days ago

    Thank you convergent evolution

  57. dragonspight

    dragonspight13 days ago

    I miss Steve :(

  58. Jack Black

    Jack Black13 days ago

    It's not a TURTLE!!!

  59. Jack Black

    Jack Black11 days ago

    @nineball039 i can't tell you

  60. nineball039

    nineball03911 days ago

    What is it then?

  61. Chop Lop

    Chop Lop13 days ago

    I like turtles

  62. nasty fish

    nasty fish13 days ago

    i love this dude

  63. Artist Cat / BrushPaw

    Artist Cat / BrushPaw13 days ago

    Are these turtles big enough to ride?

  64. Andrew Mazza

    Andrew Mazza13 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.

  65. Weasel Fartood

    Weasel Fartood13 days ago

    I dont even believe in sea turtles

  66. Artist Cat / BrushPaw

    Artist Cat / BrushPaw12 days ago

    (Please don't drink seawater)

  67. crazy cracker chicken

    crazy cracker chicken12 days ago

    they are there, trust me, this is just a testing time on your faith, drink seawater to help

  68. Artist Cat / BrushPaw

    Artist Cat / BrushPaw13 days ago

    Have faith in the turtles, the turtles won’t let you down.

  69. Tyler Butler

    Tyler Butler13 days ago

    I bet crush from finding Nemo would have said Right on dude you rock bro

  70. Max De Pasquale

    Max De Pasquale13 days ago

    Interesting. Thank you.

  71. fancydeer

    fancydeer13 days ago

    Giant turt.

  72. A Turtle

    A Turtle13 days ago


  73. Casa Dome

    Casa Dome13 days ago


  74. Nathaniel Anderson

    Nathaniel Anderson13 days ago

    1200 meters is a long way to dive.

  75. Somnus

    Somnus13 days ago

    the tully monster transition is actually really cool props to the editor

  76. cphaura

    cphaura13 days ago

    it's turtles all the way down

  77. Patrik

    Patrik13 days ago

    turtally XD

  78. thecursed01

    thecursed0113 days ago

    where do i know this actor from?

  79. Vampireax X

    Vampireax X14 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.

  80. Gianni Wip

    Gianni Wip14 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)

  81. Bubby

    Bubby14 days ago

    wow! its almost as if the climate changes

  82. Michael Nunn

    Michael Nunn14 days ago

    I love watching the show it makes me feel like a kid all over again

  83. Boras Raven

    Boras Raven14 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...

  84. Artist Cat / BrushPaw

    Artist Cat / BrushPaw12 days ago

    @Boras Raven I assume, that would be a no.

  85. Boras Raven

    Boras Raven12 days ago

    Lol sure the same way bald eagle is another name for seagull too.

  86. Artist Cat / BrushPaw

    Artist Cat / BrushPaw13 days ago

    I assume “sea eagles” is another name for “seagulls”.

  87. zXHipoXz

    zXHipoXz14 days ago

    "Body plans that just work" ah yes like crabs

  88. Jaycee Williams

    Jaycee Williams14 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

  89. Lainey Bug

    Lainey Bug14 days ago

    I miss hearing "...And Steve..." At the end of names. Hope he's doing ok...

  90. J D

    J D14 days ago


  91. Artist Cat / BrushPaw

    Artist Cat / BrushPaw13 days ago

    You drop something? About 21 hours ago?

  92. Ed D

    Ed D14 days ago

    I'm assuming this thing has elephants on it's back. Also I think this triggers Pennywise the Clown

  93. PilotAnenome 372

    PilotAnenome 37214 days ago

    Anyone else remember that walking with dinosaurs episode where he tried to swim with one and almost died?

  94. Joseph Gustafson

    Joseph Gustafson14 days ago

    Man sea turtles are awesome!

  95. Artist Cat / BrushPaw

    Artist Cat / BrushPaw13 days ago

    That’s a fact, not an opinion.

  96. Mike 1958

    Mike 195814 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.

  97. Tri Ceratops

    Tri Ceratops14 days ago

    Steve! The jeans and jacket look is a very hip but classy look for you.

  98. MrEmoImo

    MrEmoImo14 days ago

    I wonder if in the distant future another animal will take a form similar to humans.

  99. crazycatlady39

    crazycatlady3914 days ago

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

  100. Omega Turtle

    Omega Turtle14 days ago

    Big bois

  101. Mr. X

    Mr. X14 days ago

    Blathers told me all about this fine turtle.

  102. Artist Cat / BrushPaw

    Artist Cat / BrushPaw13 days ago

    I’d your fossil section of the museum complete?

  103. savannah sylken

    savannah sylken14 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

  104. KTVX.94

    KTVX.9414 days ago

    Heroes in a skin shell Turtle power

  105. Nick S

    Nick S14 days ago

    Sometimes I look up at the stars at night and wonder if jellyfish taste spicy to sea turtles.

  106. Riley Kneale

    Riley Kneale14 days ago

    Huge respect for acknowledging native peoples rights

  107. Cristina Martiño Romero

    Cristina Martiño Romero14 days ago

    It's really nice you recognise first nation's rights to their lands.

  108. Nick Hentschel

    Nick Hentschel14 days ago

    Today's phrase is, "convergent evolution."

  109. elmohead

    elmohead14 days ago

    Still covering those guns, eh?

  110. Blaxx MAO

    Blaxx MAO14 days ago

    Hope people didn't illegally throw away their giant straw

  111. Uhh Ahh

    Uhh Ahh14 days ago

    A friend

  112. jedi foghorn

    jedi foghorn14 days ago

    I miss "and Steve".

  113. AIDAN

    AIDAN14 days ago

    Eeey I know those from animal crossing

  114. Fishice Fishnice

    Fishice Fishnice14 days ago

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

  115. Water Dragon

    Water Dragon14 days ago

    This reminds me of dinosaur train. The cadance, the visuals, the old animals, dang

  116. ShadowFoxSF

    ShadowFoxSF14 days ago

    That dino joke was amusing.

  117. Debbie King Tampa

    Debbie King Tampa14 days ago

    I love sea turtles. Ty

  118. Cristian Verdugo Galaz

    Cristian Verdugo Galaz14 days ago

    to quote that boy that became a meme, I like turtles