When the Synapsids Struck Back

  • Published on: 19 June 2019
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    Synapsids were the world’s first-ever terrestrial megafauna but the vast majority of these giants were doomed to extinction. However some lived on, keeping a low profile among the dinosaurs. And now our world is the way it is because of the time when the synapsids struck back.

    Thanks to Ceri Thomas for the excellent Synapsid illustration (including Bulbasaurus!)! Check out more of Ceri's paleoart at http://alphynix.tumblr.com and http://nixillustration.com

    And thanks as always to Studio 252mya for their wonderful illustrations. You can find more of their work here: https://252mya.com/

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

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    References: https://docs.google.com/document/d/1YbTns-AcONtRWN9pdOZMfiqYDP5-3Hb-zt1gtDMV1Fw/edit?usp=sharing
  • Runtime : 10:55
  • dinosaurs dinos paleo paleontology scishow eons pbs pbs digital studios hank green john green complexly fossils natural history Thrinadoxon Permian Great Dying synapsid stem mammals megafauna Age of Reptiles Pangea Sauropsids temporal fenestra therapsids cynodonts burrowers mammals Carnivores herbivores dimetrodon

COMMENTS: 40

  • Matthew K
    Matthew K   4 days ago

    “And a knack for burrowing, which you may or may not do. I don’t know how you spend your free time.”Me, midway through digging a hole to hide in:

  • Amiel Davis Artist
    Amiel Davis Artist   6 days ago

    3:48 if you would look at the largest one, that is me lol i got a small head

  • Rubashow
    Rubashow   6 days ago

    Synapsid comes across the corpse of a T-Rex, notices it's flacid arms.Stop hitting yourself. Stop hitting yourself.- Ahh. I needed that.

  • Ernesto M.
    Ernesto M.   1 weeks ago

    Im sorry but I cant take that ridiculous thing at 4:03 seriously it looks like it was made by Seth Rogen for a parodical Walking with Dinosaurs.

  • Mbrace
    Mbrace   1 weeks ago

    @5:46 "Bulbasaurus"Bruh....

  • Davizito PA
    Davizito PA   1 weeks ago

    I REALLY HATE the Curiosity Stream, so dislike and no watch.

  • Amatus Pragensis
    Amatus Pragensis   2 weeks ago

    If synapsids are "stem mammals", aren't dinosaurs basically "stem birds"?

  • Jansen Art
    Jansen Art   2 weeks ago

    I've been thinking about this, and synapsids are not really in a "transitional" phase, because that implies that something understands its development and is working towards something else. In reality, it's more like the order (or whatever clade you choose to place it in) is optimizing itself with new mutations that lead into new areas of development, which in turn allow the exploitation of new biomes, increasing geographical reach and allowing for the exploitation of even newer mutations. I don't know what to call it, but it feels like "transitional" doesn't describe what is happening with the creatures while they were alive.

  • Fuck You
    Fuck You   3 weeks ago

    I don't trust someone that says equator like that

  • Dan Ryan
    Dan Ryan   4 weeks ago

    The huge synapsid with the tiny head died from embarrassment.

  • Honk
    Honk   1 months ago

    "a knack for burrowing" being german I believe we have retained that trait. as many beaches can attest to.

  • Shadow Jenkins
    Shadow Jenkins   1 months ago

    So basically. What I just learned, is that we are all lizard people 😱

  • pimpczar2011 daily
    pimpczar2011 daily   1 months ago

    Damn Trump's global warming destruction agenda is quite ancient.

  • James H
    James H   1 months ago

    Where's the anapsids or diapsids if you're talking about temporal fenestra? Very mammal-biased video.

  • Geoff
    Geoff   1 months ago

    "You are a synapsid, closer related to these early mammals than to lizards."Mark Zuckerberg has entered the chat.

  • SafeyOrange
    SafeyOrange   1 months ago

    Therapist:Don't worry Mammal lizard is extinct. It cant can't hurt youMammal Lizard: 4:51

  • Martilives 369
    Martilives 369   1 months ago

    Oh boy...evolution absolutely does exist...sorry conservatives 😙

  • Angelique Barbey
    Angelique Barbey   1 months ago

    I personally prefer to be more of a bird than a mammal and I see that despite what our scientists think today that we have at least one good avian feature, namely, in the way our back is organized with the S-Curve! Anyway I really enjoyed this video but truly prefer to see us as avian rather than synapsid mammals although I do not deny that we are this too. Also and especially I do wish we would stop seeing the proto-birds as reptiles which they are not, I mean the now very much acknowledged non-avian dinosaurs which is admittedly far from a good name for them but since for purposes of communication I need to call them terrible lizards, I do. Understand dear readers though that the birds today are very successful and they owe this to the dominant land vertebrates of the Mesozoic Era!

  • Dzimas
    Dzimas   1 months ago

    66 million years ago, we made Earth synapsid again!

  • mastacho
    mastacho   1 months ago

    Subtítulos en español por favor

  • joko lelono
    joko lelono   1 months ago

    sauropsids 2 fenestral openingssynapsids one fenestral openingturtle and tortoise : visible confusion what am i then?

  • Rayven Hitt
    Rayven Hitt   1 months ago

    RIP Pelycosaurs and Therapsids, distant relatives of what were to become mammals (via Cynodonts).

  • Comp1810 C
    Comp1810 C   1 months ago

    @7:42 Thats just Cheetah with extra steps...lol

  • Redkoopa
    Redkoopa   2 months ago

    My uncle is a synapsid.

  • Lorenzo Bontorin
    Lorenzo Bontorin   2 months ago

    tho the great dying something dam scary. I mean 90% of life on earth... Man that was very damn bad

  • Lorenzo Bontorin
    Lorenzo Bontorin   2 months ago

    the story of Synapsids and Sauropsids is the most fascinating thing of the prehistoric ages for me (with the Cambrian creatures, I mean those things were amazing). It's like life said: hm, let's see, where to go now, mammals or reptiles... And the reptiles took the upper hand, stood there for very long time, but then it came back like, well you know, that wasn't the best strategy after all, let's get to the mammals route, maybe that'll work better on disastrous situations.

  • Roger Muyco
    Roger Muyco   2 months ago

    now i know where bulbasaurs came from XD