When the Synapsids Struck Back

  • Published: 20 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 alphynix.tumblr.com and nixillustration.com

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

    Produced in collaboration with PBS Digital Studios: office-2016.info/user/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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    References: docs.google.com/document/d/1YbTns-AcONtRWN9pdOZMfiqYDP5-3Hb-zt1gtDMV1Fw/edit?usp=sharing
  • Science and Technology Science and Technology

Comments • 1 224

  • areearera daemair
    areearera daemair  16 hours back

    Well, some of us dig holes in the park and sit in them.

    • W Serba
      W Serba  2 days back

      Inhalation through the turbinates also helps to cool the blood inside of the cranium, acting as kind of brain AC unit. If you do aerobic exercises, try inhaling through your nose and exhaling through your mouth. Try comparing thoughts and thought patterns between mouth breathing and nose breathing. I've personally found my thoughts to be more coherent when I'm less overheated.

      • Izzy Belisle
        Izzy Belisle  2 days back

        2:26 the WHAT?

        Bro she pronounces so many words poorly. Someone put some notes in her script 😂

        • John Paul
          John Paul  4 days back

          5:45 So basically Pokemons is real

          • josh peck
            josh peck  5 days back

            Impressive presentation.

            • Craig Wall
              Craig Wall  1 weeks back

              My name is Craig...dweller of the crag. I definitely have burrowing tendencies.

              • Kankarii
                Kankarii  1 weeks back

                2:06 what song is that? Where can I find it?

                • Flybynight 3
                  Flybynight 3  2 weeks back

                  I'm sorry calling them " ancestors" seems strange the origins of at least humans are not certain by science or anyone else , is mysterious. it seems strange that earth seems to be a planet where animals flourish but if we are a product of this same system why are we so young in fossil records but so advanced and why aren't there any species of creature besides homo sapien around that can reason or that look remotely like us I know neanderthal and others but why did they die off did we kill them all?

                  • Kyle Russo
                    Kyle Russo  2 weeks back

                    Would have they tasted more mammalian or reptilian is my question?

                    • SnowmansApartment
                      SnowmansApartment  2 weeks back

                      what a perfect pet for a time traveler =)

                      • Aaron J
                        Aaron J  2 weeks back

                        if my great great great x100 rat-granny could live in the ground, then i know this is my true calling. . .

                        • Aaron J
                          Aaron J  2 weeks back

                          Me: *casually minding my own business, currently making a new burrow for myself, as most reptile-rats do*
                          Eagle: *scoops me up and carries me away*

                          • VonnPlays - Ognimdo2002

                            Birds are dinosaurs
                            Reptiles are itself
                            Amphibians are fish
                            Humans and mammals are synapsids
                            Me: all races are synapsids
                            Ah damn, here go again

                            • Faisal Abdullah
                              Faisal Abdullah  3 weeks back

                              Where is Venasurus? By the way I am descendent from the Charizardarus branch.

                              • Lor Bmoreflow
                                Lor Bmoreflow  3 weeks back

                                So platypus is one of these synapsids? Lay eggs have fur and a beak?

                                • generic username 420
                                  generic username 420  3 weeks back

                                  No, platypus is part of a group called monotremes. Their beak isn't made of keratin like an actual beak, they are modern mammals

                              • Jalisa Kowalski
                                Jalisa Kowalski  4 weeks back

                                Please dont ever stop this channel. Continue discovering. This series is like an addiction.

                                • Devix
                                  Devix  1 months back

                                  Looking at our trenches during WW1, we still do some burrowing actually.

                                  • Lewis Goldsberry
                                    Lewis Goldsberry  1 months back

                                    It comparable of large dinosaurs

                                    • Horizonte de Sucesos
                                      Horizonte de Sucesos  1 months back

                                      Thank you PBS Eons for this!! love your channel

                                      • ivan abrosimov
                                        ivan abrosimov  1 months back

                                        wait,wait, how about the lystrosaurs? they survived the extinction too, didnt they?

                                        • Hentai God
                                          Hentai God  1 months back

                                          Borat voice ,what type of dog is this? 😂

                                          • Dani Play's
                                            Dani Play's  1 months back

                                            Poor dogo

                                            • Leonard Bright
                                              Leonard Bright  1 months back

                                              I have a theory that monotremes arent mammals but the last branch of synapsids;

                                              • Jammie!
                                                Jammie!  3 weeks back

                                                hypothesis at best*

                                            • Kal
                                              Kal  1 months back

                                              Did these animals lay eggs or give live birth?

                                              • AliasUndercover
                                                AliasUndercover  1 months back

                                                Eh, I've been known to burrow on occasion.

                                                • Mr Monstah
                                                  Mr Monstah  1 months back

                                                  5:47 *Bulbasaurus* I KNEW IT, POKEMON ARE REAL!

                                                  • Elenna Pointer
                                                    Elenna Pointer  1 months back

                                                    Just think - the rats we see around us may be the ancestors of the next intelligent species on Earth.

                                                    • Vincent Cournoyer
                                                      Vincent Cournoyer  2 months back

                                                      Maybe our need to have a roof over our heads is connected to the habit of burrowing? Very interesting episode thank you Eons!

                                                      • João Gabriel
                                                        João Gabriel  2 months back

                                                        Well, is it burrowing under blankets still considered burrowing?

                                                        • PixelDrake
                                                          PixelDrake  2 months back

                                                          What's the name of the piece playing in the background during the opening? I like it

                                                          • Carolina Coreas
                                                            Carolina Coreas  2 months back

                                                            I wish I watched this video the day before my bio quiz , it would have helped me a lot.

                                                            • Thomas Tuthill
                                                              Thomas Tuthill  2 months back

                                                              Synapsids are 65% demon orbs, 30% water, 5% mammal.

                                                              • Jackie Santos
                                                                Jackie Santos  2 months back

                                                                Well yeah probably we have a little reptile inside of Us Wellston mammal or shirt

                                                                • Ayla Williamson
                                                                  Ayla Williamson  2 months back

                                                                  Can you imagine being a small lizzard chilling and this hyperactive black-eyed toothy monster comes after you like a ghost girl crawing on a ceiling?

                                                                  • Acedia Nihil
                                                                    Acedia Nihil  2 months back

                                                                    Minecrafts popularity makes so much sense now.

                                                                    • thefran901
                                                                      thefran901  2 months back

                                                                      Mammals to avian dinosaurs (birds): "The synapsids send their regards."

                                                                      • RayMondoART
                                                                        RayMondoART  2 months back

                                                                        One of my fav episodes as I get to see many many weird "freaks" XD cotylorhynchus is weird enough but moschops? Omg

                                                                        • Undercover Hat
                                                                          Undercover Hat  2 months back

                                                                          Thanks so much for your work and your enthusiasm, Kallie!! Your awesomeness is immeasurable. :)

                                                                          • Michael Crockis
                                                                            Michael Crockis  2 months back

                                                                            I'm burrowing in the blanket right now while watching it. Can't lose your instincts just like that.

                                                                            • Arceus Lord of Creation
                                                                              Arceus Lord of Creation  2 months back

                                                                              Tinder profile
                                                                              “Hobbies include borrowing”

                                                                              • Octavio Nieto
                                                                                Octavio Nieto  2 months back

                                                                                5:17 When you accidentaly open the front camera

                                                                                • Random Guy In The Comments

                                                                                  3:48 ...ok lady, you're trying to tell me that's not a lizard with a tiny shark head, and a frog with a tail?

                                                                                  • Richard Horsfall
                                                                                    Richard Horsfall  2 months back

                                                                                    ..."on the cusp of the worst disaster it would ever experience"...So far.

                                                                                    • Carlos Monroy
                                                                                      Carlos Monroy  2 months back

                                                                                      looks like an ancient dog.

                                                                                      • roop298
                                                                                        roop298  2 months back

                                                                                        Flush. I like a girl passionate about her topic.

                                                                                        • EloquentTroll
                                                                                          EloquentTroll  2 months back

                                                                                          Bulbasaurus, I choose you!

                                                                                          • sluggo3slug
                                                                                            sluggo3slug  2 months back

                                                                                            Please sit down