When Sharks Swam the Great Plains

  • Published: 05 December 2018
  • Check out Origin of Everything: http://lavendercottage.info/channel/UCiB8h9jD2Mlxx96ZFnGDSJw

    If you’ve ever been to, or lived in, or even flown over the central swath of North America, then you’ve seen the remnants of what was a uniquely fascinating environment. Scientists call it the Western Interior Seaway, and at its greatest extent, it ran from the Caribbean Sea to the Canadian Arctic.

    Thanks to Dmitry Bogdanov, Nobu Tamura, C.R. Scotese, NASA and the many others listed throughout the video for making their images available to use.

    Produced in collaboration with PBS Digital Studios: lavendercottage.info/user/pbsdigitalstudios

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

    Katie Fichtner, Anthony Callaghan, Neil H. Gray, Marilyn Wolmart, Esmeralda Rupp-Spangle, Gregory Donovan, Ehit Dinesh Agarwal, سلطان الخليفي, Gabriel Cortez, Marcus Lejon, Anel Salas, Robert Arévalo, Robert Hill, Kelby Reid, Todd Dittman, Betsy Radley, PS, Colin Sylvester, Philip Slingerland, John Vanek, 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, Sapjes, Daisuke Goto, Hubert Rady, Yuntao Zhou, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Ruben Winter, Ron Harvey Jr, Jacob Gerke, Alex Yan

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    Oceans of Kansas: A Natural History of the Western Interior Seaway (Second Edition) by Michael J. Everhart.
  • Science and Technology Science and Technology

Comments • 962

  • Zimrian Zimrian
    Zimrian Zimrian  4 days back


    • Joelle Wong
      Joelle Wong  3 weeks back

      This is one of my favorite Eons episodes. Cool ancient marine life!

      • Linda T
        Linda T  4 weeks back

        lol I always laugh when American's pronouce things such as niche and route hahaha...

        • KTSP
          KTSP  1 months back

          If I stayed where I am now and went back in time far enough my state( Texas ) and a the middle of the us would be a sea

          • ivan abrosimov
            ivan abrosimov  1 months back

            i like how your smiling when you said the 2.5 long fish inside xiphactinus must have exploded some of its organs or something.

            • Jake Currier
              Jake Currier  1 months back

              I went to college in Hays, KS and have seen the fossil shown, fish within a fish, very cool to see this featured in an educational video.

              • JoJo Bean
                JoJo Bean  1 months back

                It shows Michigan and its lakes are intact. Any way to see how they form?

                • Stanley Osburn
                  Stanley Osburn  1 months back

                  I came across a airra with fossilized animals in the donkey hills in Idaho one rock has the rib cage of a large animal of some kind ,the ribcage is 6ft long

                  • M33t My Blade
                    M33t My Blade  1 months back

                    Why tf she calling dinosaurs reptiles

                    • B Fowl
                      B Fowl  1 months back

                      Now I wanna build a seashell castle

                      • Dennis Weber
                        Dennis Weber  1 months back

                        can the western interior seaway come back w/ global warming?

                        • will Thomas
                          will Thomas  2 months back

                          she's kinda cute

                          • Maggot
                            Maggot  2 months back

                            Why does no one ever mention the third large landmass up north?

                            • Kevin Lalonde
                              Kevin Lalonde  2 months back

                              Wow crazy that the great lakes were around back then

                              • Login Yoass
                                Login Yoass  2 months back

                                I've found tube like fossils of plants and some shells

                                • Gloria McClamma
                                  Gloria McClamma  2 months back

                                  I want to know how Andrewsarchus evolved into sheep and goats, please!

                                  • Steve Okay
                                    Steve Okay  3 months back

                                    I'm totally going to recommend the book "The Oceans of Kansas" , by Michael Everhart, curator at the Sternberg Museum as a great book followup to this video.

                                    • Mitchell Whitehead
                                      Mitchell Whitehead  3 months back

                                      How global warming lead to global warming.

                                      • jake saenz
                                        jake saenz  3 months back

                                        i live in texas and i find seashells in my backyard

                                        • DMB fan
                                          DMB fan  3 months back

                                          Minnesota has a state park that you can dig for fossils, found a shark tooth there.

                                          • Michael Nonya
                                            Michael Nonya  3 months back

                                            No megladon ???

                                            • Veggieboy Ultimate
                                              Veggieboy Ultimate  3 months back

                                              Niche partitioning could be seen in YouTube, trying to make videos that does not have same content or else your channel will be deleted. Quite a similarity here huh?

                                              • Gloria McClamma
                                                Gloria McClamma  3 months back

                                                I want to know how Andrewsarchus evolved into sheep and goats.

                                                • Awkwurd Knight
                                                  Awkwurd Knight  3 months back

                                                  Big ol thighs

                                                  • Elise V.
                                                    Elise V.  3 months back

                                                    her voice is triggering my flight or fight response

                                                    • Brett
                                                      Brett  3 months back

                                                      I just want to say I love this channel. There's so much incredible content that can help me learn about things in a fun and easy way for completely free. Thank you so much for making it and helping me understand how truly bizarre and wonderfully massive our planet and its history is.

                                                      • Eric Dufrane
                                                        Eric Dufrane  3 months back

                                                        Woulda been nice to see more actual fossils n not just artists' rendering

                                                        • rejvaik
                                                          rejvaik  3 months back

                                                          The narrator is very attractive

                                                          • FuzzyWuzzy98
                                                            FuzzyWuzzy98  3 months back

                                                            If all these massive carnivores could co-exist for millions of years then surely humanity can too... Right?

                                                            • Julie Mercer
                                                              Julie Mercer  3 months back

                                                              Hi from Hays, KS!!!! The fish within a fish is really cool to see at the Sternberg as well as many other specimens. They even have giant animatronic dinosaurs.

                                                              • Valentin S.
                                                                Valentin S.  3 months back

                                                                What wrong with your background music??

                                                                • MarloSoBalJr
                                                                  MarloSoBalJr  3 months back

                                                                  Imagine the farmers of today with that amazing waterfront

                                                                  • lemmingscanfly5
                                                                    lemmingscanfly5  3 months back

                                                                    What if there were tons of soft bodied prey in the seaway that didn’t fossilize.

                                                                    • Lightning McDeutschland
                                                                      Lightning McDeutschland  4 months back

                                                                      I live in da prairies :3 lol it would be terrifying if there were sharks swimming around over here

                                                                      • sierra 117
                                                                        sierra 117  4 months back

                                                                        In many parts of the Wasatch mountains, you can find sea shells high in the mountains. Quite amazing.

                                                                        • Dustin Langewand
                                                                          Dustin Langewand  4 months back

                                                                          10:20, the first casualty of deapthroat :P

                                                                          • Preston Miller
                                                                            Preston Miller  4 months back

                                                                            5:08 What is the plesiosaur eating? Looks like a penguin with the worlds weirdest balloon feet.

                                                                            • ninerrider5
                                                                              ninerrider5  4 months back

                                                                              HA! Take that you stupid Christians................

                                                                              • ham
                                                                                ham  4 months back

                                                                                I live in CO rn and this makes me want to dig in the ground and find giant marine animals

                                                                                • Dally H.
                                                                                  Dally H.  4 months back

                                                                                  One day I will know of this elusive "Steve" character!

                                                                                  • Vijay Panchal
                                                                                    Vijay Panchal  4 months back

                                                                                    Love u sex bom

                                                                                    • Tom Kast
                                                                                      Tom Kast  4 months back

                                                                                      What I would like to learn about? It is what I would like for you to learn about, it is to answer the question about the origin of life. I have seen your programs, very, very, good. Thank you so much. But as you see, you get no farther than the prokaryotes. And the viruses origin? Same deal, three or four theories without any commitment as to the truth of lifes origin. So I would suggest that life has always existed in the universe (hypothesis). Next, how about hurling a rock, heated to falling-asteroid-temperature with some heat resistant prokaryotes or similar inside the rock and please see if the prokaryotes live. Other similar experiments would be great. And you history of organelles was really good. But I need commitment from you on real answers to these harder questions. Maybe just take a position and go for it!

                                                                                      • Justin Sander
                                                                                        Justin Sander  4 months back

                                                                                        South East Missouri has an abundance of sea fossils. So it extended at least to there at some point.

                                                                                        • Cory Branch
                                                                                          Cory Branch  4 months back

                                                                                          So European explorers were 68 million years late to sail the Northwest Passage?

                                                                                          • Jon Ballard
                                                                                            Jon Ballard  4 months back


                                                                                            • Chris Haugh
                                                                                              Chris Haugh  4 months back

                                                                                              2:39 oh I'm sorry what did you just say, something about the cretaceous period being "unusually warm" and 6 degrees higher on average than it is today? Must be all that global warming from those dirty humans.

                                                                                              • Solrod
                                                                                                Solrod  4 months back

                                                                                                So that's why the maps from that time show water splitting the U.S. in two. I always wondered, how do they know there was a sea there? Well here's my answer

                                                                                                • John Williamson
                                                                                                  John Williamson  4 months back

                                                                                                  Could you guys do a video on, Why birds lost their teeth?