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All Theropod Dinosaurs Were Bipedal! But WHY?! | Paleo Mysteries

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  • Опубликовано: 2 авг 2024
  • A fascinating fact about theropod dinosaurs, a group comprised mostly of carnivorous species, is that they all walked on two legs. But what led theropods to adopt bipedalism instead of walking on all fours?
    In this video, we will investigate this intriguing topic and try to unravel the secrets behind their unique way of movement.
    ‼️ Please keep in mind that I'm not an expert, just a guy with a deep interest in prehistoric nature. Feel free to point out any mistakes in the comment section. ‼️
    CHAPTERS:
    0:00 - 0:59 - Intro
    1:00 - 2:21 - Obligate bipeds
    2:22 - 4:11 - Evolutionary advantage
    4:12 - 4:58 - Outro
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    USED FOOTAGE:
    If you find that I’ve used your footage, like commissioned artwork and you insist for it to be removed, please reach out to me before reporting the video. I’m pretty reasonable.
    The use of the commissioned art was entirely unintentional and was made on accident (I downloaded hundreds of images over a few days, and it’s possible that I accidentally included commissioned pieces-mistakes happen!).
    I hope we can privately discuss my mistake through email and find a solution to resolve this issue. Thank you!
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Комментарии • 50

  • @vladimirlagos2688
    @vladimirlagos2688 28 дней назад +6

    Well, here goes the obvious follow up question. If bipedalism was such a gamechanging advantage why didn't it reevolve again in carnivourous mammals until the advent of humans?

    • @PaleoFrontier
      @PaleoFrontier  28 дней назад +5

      Good question! It most likely had something to do with the different anatomy of their spine.

    • @william3100
      @william3100 24 дня назад +1

      ​​@@PaleoFrontierPlenty of reptiles, even huge ones, both in the past and now, were and are quadrapedal with a good few being carnivorous. Even small ones like silesaurs were quadrapedal.
      Certain mammals like kangaroos are also bipeds and a stance like there's definitely could've advanced to be for that of carnivorous mammals in the past. So, I don't think spine anatomy has very much to do with it.
      Plus, look at ancient pseudosuchians. Most terrestrial crocodilian relatives were quadrapedal with the bipeds being in the minority. Even the biggest ones like fasolasuchus, prestosuchus, and saurosuchus were all quadrapeds.

    • @PaleoFrontier
      @PaleoFrontier  24 дня назад +1

      Spine difference is the only thing I could find in the available articles 🤔

    • @vladimirlagos2688
      @vladimirlagos2688 22 дня назад +1

      @@PaleoFrontier Also worth exploring, if bipedalism was a clear advantage, why did the terror birds fail to hold on to the top carnivore role in the Cenozoic? My guess is that they were probably sabotaged by other anatomical aspects of bird anatomy, but it would be cool to explore in detail which were the bodyplan traits that played against them and how.

  • @vladline1882
    @vladline1882 28 дней назад +11

    And Sauropods changed from Biped to quad

    • @PaleoFrontier
      @PaleoFrontier  28 дней назад +5

      Yes, two legs simply weren’t enough to support their massive size.

  • @SmurphyMurph
    @SmurphyMurph 27 дней назад +2

    PART of the reason they are even classified as therapods is because they are bipedal, I feel like it contradicts itself by asking why are all therapods bipedal when that is the system we put them in

    • @PaleoFrontier
      @PaleoFrontier  27 дней назад

      You might want to look up the true definition of theropods 😉

    • @KyuuDesperation
      @KyuuDesperation 24 дня назад

      ​@@PaleoFrontierI looked it up alright, and you're definitely not Romain Pintore.

  • @laseriedeladilophosaure9246
    @laseriedeladilophosaure9246 27 дней назад +3

    2:01 quand les carcharodontosaurus ont l'air plus badass que les tyrannosaurus rex😂

  • @NoTimef_r
    @NoTimef_r 23 дня назад

    They didn't want to take the meaning "lizard" too literally

  • @hieratics
    @hieratics 27 дней назад +2

    Isn't a mini stegosaurus like specie proved to have a fish diet?

    • @PaleoFrontier
      @PaleoFrontier  27 дней назад

      Huh, never heard about this guy 👀

    • @PaleoFrontier
      @PaleoFrontier  27 дней назад

      Do you know the name?

    • @hieratics
      @hieratics 27 дней назад +1

      @PaleoFrontier actually is a ankylosaur 😅: Liaoningosaurus paradoxus

    • @PaleoFrontier
      @PaleoFrontier  27 дней назад +1

      Yup! Know this one!

  • @johnelliott7850
    @johnelliott7850 27 дней назад +2

    And humans?

    • @PaleoFrontier
      @PaleoFrontier  27 дней назад +1

      Humans have different spine anatomy.

    • @johnelliott7850
      @johnelliott7850 27 дней назад +1

      @@PaleoFrontier Yes, our spines are different, and bipedalism was arrived at from a very different heritage, but I can't think of any other placental mammal that shares such as its primary form of locomotion. Just an aside, really. Nothing much to do with theropod dinosaurs. Strictly for the birds.

  • @Shimosevilbrother99
    @Shimosevilbrother99 29 дней назад +1

    Spinosaurus is quadrupedal btw

    • @PaleoFrontier
      @PaleoFrontier  29 дней назад +6

      As far as I am aware, unless you are considering the 2014 depiction of Spinosaurus to still be valid, it is only considered a biped. I could be wrong though 😁

    • @anthonybusch4407
      @anthonybusch4407 29 дней назад +4

      ⁠No… You are very much correct. It’s definitely still bipedal.

    • @George_M_
      @George_M_ 28 дней назад +3

      It's forelimbs are too grabby looking to be always on the ground. It may have been lower to the ground than any other theropod, but still stood on the back legs. When not in the water.

    • @vladline1882
      @vladline1882 28 дней назад +3

      Not anymore

    • @Mike_The_Allosaurus
      @Mike_The_Allosaurus 25 дней назад

      Its not, it was very quickly disprooven that spinosaurus wouldnt be able to walk on its arms/knuckles as it would break them if it tried to do so

  • @indyreno2933
    @indyreno2933 28 дней назад +1

    Fun fact: with the exception of the dromaeosaurid Natovenator polydontus, none of the theropod dinosaurs are good at swimming.

    • @seanmorris440
      @seanmorris440 28 дней назад +2

      What about ducks and penguins?

    • @indyreno2933
      @indyreno2933 28 дней назад

      I was talking about non-avian theropod dinosaurs.

    • @Dr.Ian-Plect
      @Dr.Ian-Plect 28 дней назад +8

      @@indyreno2933 Beware of a commenter called Indy Reno posting nonsense taxonomy and other flawed info. He does this all the time and stubbornly ignores criticism. Further, when confronted, he frequently replies; 'actually' followed by a wall of even more flawed taxonomy, none of which addresses the first round of nonsense.

    • @indyreno2933
      @indyreno2933 28 дней назад

      @Dr.Ian-Plect, stay out of this, this video has nothing that involves your statement that is not relevant or related to this video.

    • @danielrestrepo1994
      @danielrestrepo1994 28 дней назад

      Are spinosaurids not theropods?