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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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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?
Good question! It most likely had something to do with the different anatomy of their spine.
@@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.
Spine difference is the only thing I could find in the available articles 🤔
@@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.
And Sauropods changed from Biped to quad
Yes, two legs simply weren’t enough to support their massive size.
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
You might want to look up the true definition of theropods 😉
@@PaleoFrontierI looked it up alright, and you're definitely not Romain Pintore.
2:01 quand les carcharodontosaurus ont l'air plus badass que les tyrannosaurus rex😂
I have somehow always found Giga to be much cooler than T. rex 👀
@@PaleoFrontiermoi aussi 😊
They didn't want to take the meaning "lizard" too literally
Isn't a mini stegosaurus like specie proved to have a fish diet?
Huh, never heard about this guy 👀
Do you know the name?
@PaleoFrontier actually is a ankylosaur 😅: Liaoningosaurus paradoxus
Yup! Know this one!
And humans?
Humans have different spine anatomy.
@@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.
Spinosaurus is quadrupedal btw
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 😁
No… You are very much correct. It’s definitely still bipedal.
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.
Not anymore
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
Fun fact: with the exception of the dromaeosaurid Natovenator polydontus, none of the theropod dinosaurs are good at swimming.
What about ducks and penguins?
I was talking about non-avian theropod dinosaurs.
@@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.
@Dr.Ian-Plect, stay out of this, this video has nothing that involves your statement that is not relevant or related to this video.
Are spinosaurids not theropods?