It’s awesome how you’re videos such as these cover topics that typically aren’t even thought of that often, much less discussed, and it certainly makes your channel awesomely unique and fun to watch.
I feel like this makes tyrannosaurids even scarier than they already were. Good, built-in temperature regulation features are a great way to create an endurance predator, which in my opinion is the scariest type of predator.
I am not gonna lie at 3 minutes and 52 seconds that scene where you kind of super imposed the eyeballs over the skeleton caught me off guard it was actually a really cool scene.
This is fascinating because T. Rex and other mid to large theropods have demonstrated more endothermic adaptations fairly consistently, but this seems like an ectothermic adaptation. Hugely fascinating
What a fascinating and amazing video of new paleoresearch of the thermal archosaurs (both living and extinct)! As always, very well done, Brian! Sure love this video and information and your stunning paleoarts! :D
Yo sick video! I keep rewatching not only because it’s amazing, but the music in the background. What’s the name of the song? I would love to listen to it.
Serious question (might not get answered, I know this video has been out a while) How does having an expanded temperature control device seen in cold blooded reptiles square with the idea that dinosaurs were semi if not fully warm blooded like modern birds? Does an animal capable of internal homeostasis need to use a structure like this to keep its head cool? Would it have just been used to cool the brain and eyes after periods of high exertion or is it perhaps a more vestigial feature carried over from more cold blooded ancestors or perhaps have a completely different function entirely? I know birds will pant in order to reduce body heat but have any similar groups of blood vessels been observed in their skulls? Ok so that was maybe more than one question :P awesome discovery in any case. Amazed I hadn't heard about it until seeing this video. Need to start reading more journals and papers again!
..... that would lend to an interesting idea that if dinosaurs like t rex was in fact feathered, that would be useful to keep it at a stable temperature despite its size. Considering o hear a big argument of a t rex having feathers was that it’s size would cause overheating.
Ancient crocodylomorphs (Maybe even crocodilians too, I am not sure) were warm blooded. This trait is most definitely beneficial to warm blooded animals. In fact, it seems all archosaurs were ancestrally warm blooded. Assuming this system of temperature regulation did not evolve twice, this means the first archosaur would've had this system too, and given that it was probably warm blooded, this yet again shows that this is a good temperature regulator for warm blooded animals. Overheating is a serious concern especially for predators, so having this to keep your brain and eyes cool while also being able to raise the temperature when it gets cold is extremely useful.
@@HistorianHimself You make great art, film, animation, music, can even rap and is all about dinosaurs. It's hard not to be jealous and inspired. If I could I would support your patreon but unfortunately I can only spread the word.
Birds are warm blooded, as I understand this FPF is used for thermal regulation through sun bathing. thermal regulation in endotherms are also a bit different, most techniques are used to cool down the body such as sweating or panting but insulation such as fur, feathers and blubber are the most effective ways of containing heat partly because cold environments contain litle sun and partly because endotherms produce heat anyway. (I could be wrong)
@@misterlime2.030 Tyrannosaurids were also warm blooded. But temperature regulating organs in the skull are very common in animals since that's where the brain lives. Crocodylomorphs are also ancestrally warm blooded, and this trait was present in all of their ancestors according to this video, so that also doubly shows that this is beneficial to warm blooded animals as well. I suspect even that it would be MORE important to them given how active they are and how easy it is to overheat without taking precautions to redirect the heat away from the brain on a hot day.
I think because the fenestra is of T. rex is now not believed to have aided it in biting, this would probably lower the power of its bite ( but not by a lot. ) ?
Tyrannosaurus were bigger than modern crocodiles, 5 times bigger by mass, which would imply their body temperatures were more stable to start with. What does this imply for the size and function of these vascular structures? Would you expect them to be proportionally bigger, or smaller than in modern crocodiles?
Scientists thought to understand what dinoaurs were they had to study their bones, but you also have to study their closest living relatives to really understand these extraordinary animals that are no longer with us.
super fucking annoying that you took away the trex eyes on the skeleton so quickly that even at 0.25 speed i cant freeze frame to see the comparison. Great work
Not only that but their baby was injured . So in an effort to teach humans a lesson they attacked the traliers . Cause chances are the baby t rex was deeply trumatised by their experiences.
my assumption is this warming and cooling is automatic. i wonder if tracking this feature over the evolution of same family could offer evidence of cold blooded evolving to warm? eh prolly was warm from its earliest beginnings. where they were in cold arctic climes they would need to be warm blooded that in itself should settle that issue completely i think. any other checks on other lizards and reptiles and birds for the same area for heat regulation?
Good question. Turns out lots of warm blooded animals (including birds, which have some of the highest body temps among land animals) have all kinds of ways to shed excess heat. Also to make matters wilder, crocodilians are indeed cold blooded, but there's a growing body of evidence that cold-bloodedness was re-evolved in crocs! So crocs and dinos appear to have both branched off from a warm blooded common ancestor at some point in the Triassic, and while dinos remained warm blooded & diversified into all kinds of niches where it's beneficial to be warm blooded, crocs became specialized for an aquatic ambush predator lifestyle, where it pays to be able to slow down and survive lean times.
I don't think. First of all, look at the birds. They are all warm-blooded, and non avian dinosaurs were probably really similar to them even in this aspect. Second, you have to consider the life style. Yeah we don't know the dinosaurs' one, but analyzing their anatomy we can understand many things, such as that the theropods, just don't consider other dinosaurs because we are not talking about them and there the things may vary, were really active due to their body form and were made for long activities, things that cold blooded creatures can't do. Another reasons is the fact that they hade many structures that had probably a secondary function of thermoregolation, which is not very needed in cold-blooded animals.
@@vincenzocapasso9990 i certainly agreed with many of your argument. Anyway, there's cold blooded animal that has the highest metabolic rate, monitor lizard. They show active hunting and stuff, so maybe some theropod also has eksoterm but active, their muscles provide enough heat for that lifestyle. It's just my speculation thought, always take a good amount of scepticism in it.
@@muhamadsayyidabidin3906 OK that's fair, but I guess they are only exception. Especially if we consider that pterosauria were almost certainly warm blooded, so that would mean that there are very high chances for the last common ancestor between them and dinosauria was warm blooded, and this would make all dinosaurs warm blooded since I don't a return to cold blood possible for this type of creature
@@muhamadsayyidabidin3906 plus monitor lizards are very compatible with cold blood due to anatomy and lifestyle, meanwhile dinosaurs aren't really that much
It's a compelling argument. But I'm not entirely convinced; you test this theory out with actual theropod dinosaurs, you know the Avian descendants, then I'll reconsider the theory.
If this is the case, Dinosaurs are not birds. Dinosaurs are reptiles after all. The video said birds were there during the cretacious. So this means dinosaurs are cold blooded reptiles. Which means they don't need feathers. Which means the Mesozoic is a warm planet. Not necessarily tropical but just warm template rainforest. If Tyrannosaurus has the largest eyes, this means Tyrannosaurus is the most reptile like dinosaur. So, this means Jurassic park was Technically right with scales after all.
No no no no… Everything you just said was…. Dinosaurs are warm blooded. While dinosaurs are reptiles, birds are also dinosaurs. Why wouldn’t Dinosaurs especially the ones discovered with feathers not need them?
bro theres literally fossil evidence of feathers, and modern bird lineage diverged in the jurassic from dinosaurs. No all the research is not completely trashed because of this.
This channel is hugely underrated.
Yeah this guy does his homework
He’s the real deal
0:36 Damn Dr. Casey Holliday looks rad.
Decent joke
Joke? That crocodile worked very hard for its degree thank you very much
Just The Imposter with internet access you aren’t a very fun citizen, glad I don’t know you irl
@@gamingwithben1973 gharial actually. Not a crocodile
It’s awesome how you’re videos such as these cover topics that typically aren’t even thought of that often, much less discussed, and it certainly makes your channel awesomely unique and fun to watch.
It's like the Lindybeige of Paleontology RUclips.
I feel like this makes tyrannosaurids even scarier than they already were. Good, built-in temperature regulation features are a great way to create an endurance predator, which in my opinion is the scariest type of predator.
I am not gonna lie at 3 minutes and 52 seconds that scene where you kind of super imposed the eyeballs over the skeleton caught me off guard it was actually a really cool scene.
3:52 would have been better than just typing how 3 minutes and 52 seconds lmao
If Theropods are able to see infra red light, this would be also a great display device!
This is fascinating because T. Rex and other mid to large theropods have demonstrated more endothermic adaptations fairly consistently, but this seems like an ectothermic adaptation. Hugely fascinating
The soundtrack you put on the background is creepy af. I LOVE IT!!
When the music said *aaaAAAAAhhhHH* , I really felt that
Another great video bryan, love how well produced these are, from the narration to the visuals. Also i love that music that plays
salute.
@@HistorianHimselfspeaking of music, what’s the song that’s used in the background of this video?
1:37 "to test this hypothesis, they went to the St. Augustine Alligator Farm in Florida and royally pissed off some Gators with a long stick."
Your one of the best, channel deserves more viewers.
Awesome work Brian!!! can't wait to see the next one!
What a fascinating and amazing video of new paleoresearch of the thermal archosaurs (both living and extinct)!
As always, very well done, Brian! Sure love this video and information and your stunning paleoarts! :D
3:45 Damn that was creepy.
Ikr, thats the stuff of nightmares
You have low standards for creepiness
@@Defenestration700 we got a tough guy right here
These videos are so well executed that I feel like watching a TV documentary.
Idk why it took me years to find this channel
Guy:dude this trex-
Random lady: aaaaaaaa AAAAA aaaaa AA A EEEE AAAAAaaaa eeee aaaa. oooh oooh oohhh ah ooooooh
Yay new video!
A GODDAMN SEXUAL TYRANN-
Oh wait, just thermal?
These types videos are what I’m all about.
the music is traumatizing .... 😂👌
Exellent and informative video.
Less than 3000 subs for such a cool channel. What a shame.
Very interesting video btw.
Fascinating stuff. Btw, your choice of music to go with informational videos is....... quite a directorial choice.
Do you by chance know what this song is?
I thought it was a well established fact that Tyrannosaurus were warm blooded animals (Ref.: Herman Pontzer, Washington Univesity).
Yo sick video! I keep rewatching not only because it’s amazing, but the music in the background. What’s the name of the song? I would love to listen to it.
Awesome vid
Serious question (might not get answered, I know this video has been out a while) How does having an expanded temperature control device seen in cold blooded reptiles square with the idea that dinosaurs were semi if not fully warm blooded like modern birds? Does an animal capable of internal homeostasis need to use a structure like this to keep its head cool? Would it have just been used to cool the brain and eyes after periods of high exertion or is it perhaps a more vestigial feature carried over from more cold blooded ancestors or perhaps have a completely different function entirely? I know birds will pant in order to reduce body heat but have any similar groups of blood vessels been observed in their skulls? Ok so that was maybe more than one question :P awesome discovery in any case. Amazed I hadn't heard about it until seeing this video. Need to start reading more journals and papers again!
..... that would lend to an interesting idea that if dinosaurs like t rex was in fact feathered, that would be useful to keep it at a stable temperature despite its size. Considering o hear a big argument of a t rex having feathers was that it’s size would cause overheating.
Ancient crocodylomorphs (Maybe even crocodilians too, I am not sure) were warm blooded. This trait is most definitely beneficial to warm blooded animals. In fact, it seems all archosaurs were ancestrally warm blooded. Assuming this system of temperature regulation did not evolve twice, this means the first archosaur would've had this system too, and given that it was probably warm blooded, this yet again shows that this is a good temperature regulator for warm blooded animals. Overheating is a serious concern especially for predators, so having this to keep your brain and eyes cool while also being able to raise the temperature when it gets cold is extremely useful.
Yet another reason to marvel at the living animals that so many people are just afraid of
The music here is pretty good and I guess you made it yourself right?
It was I.
@@HistorianHimself
You make great art, film, animation, music, can even rap and is all about dinosaurs. It's hard not to be jealous and inspired. If I could I would support your patreon but unfortunately I can only spread the word.
@@HistorianHimselfI can’t find this song anywhere, can you by chance let me know what it is?
The remnants of the old Fossil Forest have yet to be released.@@ottocosentino2654
Paleo art contest?
Makes me think of the tuatara's third eye.
The biomechanics of Dimetrodon lives on in the crocodilians. Gotta warm up in the morning.
Do birds have something similar to this?
Birds are warm blooded, as I understand this FPF is used for thermal regulation through sun bathing. thermal regulation in endotherms are also a bit different, most techniques are used to cool down the body such as sweating or panting but insulation such as fur, feathers and blubber are the most effective ways of containing heat partly because cold environments contain litle sun and partly because endotherms produce heat anyway. (I could be wrong)
@@misterlime2.030 Tyrannosaurids were also warm blooded. But temperature regulating organs in the skull are very common in animals since that's where the brain lives. Crocodylomorphs are also ancestrally warm blooded, and this trait was present in all of their ancestors according to this video, so that also doubly shows that this is beneficial to warm blooded animals as well. I suspect even that it would be MORE important to them given how active they are and how easy it is to overheat without taking precautions to redirect the heat away from the brain on a hot day.
man, your voice is bad ass. sounds made to talk about the most bad ass animals on the planet
I just notice an error in the video. Guanlong is from the Late Jurassic, not Cretaceous.
What's the song in the background of this video?
I think because the fenestra is of T. rex is now not believed to have aided it in biting, this would probably lower the power of its bite ( but not by a lot. ) ?
I thought they were cup holders
Tyrannosaurus were bigger than modern crocodiles, 5 times bigger by mass, which would imply their body temperatures were more stable to start with. What does this imply for the size and function of these vascular structures? Would you expect them to be proportionally bigger, or smaller than in modern crocodiles?
On Nitpick guanlong was late Jurassic
My favorite dinosaur is the meeting bowl for short it's actual name is of kind of hard to pronounce.
anyone know what the music is?
So basically Tyrannosaurus was warm boi.
Scientists thought to understand what dinoaurs were they had to study their bones, but you also have to study their closest living relatives to really understand these extraordinary animals that are no longer with us.
Closest relatives are birds
It proves dinosaurs were warm blooded Does it
03:45 Eyes.
Hey when you say non bird dinosaur, What do you mean? I thought most dinosaurs were more like birds?
Any species closer to maniraptoran theropods than to Neoaves (living birds)
5:34 it's a nightmare chicken
Dude you are a fucking maverick 👍👏👏
super fucking annoying that you took away the trex eyes on the skeleton so quickly that even at 0.25 speed i cant freeze frame to see the comparison. Great work
Not only that but their baby was injured . So in an effort to teach humans a lesson they attacked the traliers . Cause chances are the baby t rex was deeply trumatised by their experiences.
my assumption is this warming and cooling is automatic. i wonder if tracking this feature over the evolution of same family could offer evidence of cold blooded evolving to warm? eh prolly was warm from its earliest beginnings. where they were in cold arctic climes they would need to be warm blooded that in itself should settle that issue completely i think. any other checks on other lizards and reptiles and birds for the same area for heat regulation?
also makes one wonder about teh animal's coloration and it's influence to heat regulation.
Did they really killed a baby croc and dissected it? 🥺🥺🥺
It might of been found dead, but I guess it is a possibility. RIP baby croc
THis would imply dinoaurs were cold-blooded, no?
Good question. Turns out lots of warm blooded animals (including birds, which have some of the highest body temps among land animals) have all kinds of ways to shed excess heat. Also to make matters wilder, crocodilians are indeed cold blooded, but there's a growing body of evidence that cold-bloodedness was re-evolved in crocs! So crocs and dinos appear to have both branched off from a warm blooded common ancestor at some point in the Triassic, and while dinos remained warm blooded & diversified into all kinds of niches where it's beneficial to be warm blooded, crocs became specialized for an aquatic ambush predator lifestyle, where it pays to be able to slow down and survive lean times.
so would this mean dinosaurs were cold-blooded.
I don't think. First of all, look at the birds. They are all warm-blooded, and non avian dinosaurs were probably really similar to them even in this aspect. Second, you have to consider the life style. Yeah we don't know the dinosaurs' one, but analyzing their anatomy we can understand many things, such as that the theropods, just don't consider other dinosaurs because we are not talking about them and there the things may vary, were really active due to their body form and were made for long activities, things that cold blooded creatures can't do. Another reasons is the fact that they hade many structures that had probably a secondary function of thermoregolation, which is not very needed in cold-blooded animals.
It’s always a possibility
@@vincenzocapasso9990 i certainly agreed with many of your argument. Anyway, there's cold blooded animal that has the highest metabolic rate, monitor lizard. They show active hunting and stuff, so maybe some theropod also has eksoterm but active, their muscles provide enough heat for that lifestyle. It's just my speculation thought, always take a good amount of scepticism in it.
@@muhamadsayyidabidin3906 OK that's fair, but I guess they are only exception. Especially if we consider that pterosauria were almost certainly warm blooded, so that would mean that there are very high chances for the last common ancestor between them and dinosauria was warm blooded, and this would make all dinosaurs warm blooded since I don't a return to cold blood possible for this type of creature
@@muhamadsayyidabidin3906 plus monitor lizards are very compatible with cold blood due to anatomy and lifestyle, meanwhile dinosaurs aren't really that much
Your narration can be a bit dramatic, but all in all not bad.
He has the perfect voice for it. I sense that the excitement in his tone is genuine.
I hear this screaming woman in the background. Other than her high pitched sound, which was off putting, u really liked this video.
The music made me anxious lol
you should do asmr 😍
amazing video but the music is very annoying.
It's a compelling argument. But I'm not entirely convinced; you test this theory out with actual theropod dinosaurs, you know the Avian descendants, then I'll reconsider the theory.
To be fair crocodilians are dinosaurs closest living relatives
@@_Dinops Of course, but they don't share the same body plan though.
@@TheMightyN true
Well crocodilians are closer related to birds thn they are to snakes
Birds are toothless, tailless feathered theropods. They're not close relatives to dinosaurs they ARE dinosaurs
If this is the case, Dinosaurs are not birds.
Dinosaurs are reptiles after all.
The video said birds were there during the cretacious. So this means dinosaurs are cold blooded reptiles. Which means they don't need feathers. Which means the Mesozoic is a warm planet. Not necessarily tropical but just warm template rainforest. If Tyrannosaurus has the largest eyes, this means Tyrannosaurus is the most reptile like dinosaur. So, this means Jurassic park was Technically right with scales after all.
No no no no… Everything you just said was…. Dinosaurs are warm blooded.
While dinosaurs are reptiles, birds are also dinosaurs. Why wouldn’t Dinosaurs especially the ones discovered with feathers not need them?
bro theres literally fossil evidence of feathers, and modern bird lineage diverged in the jurassic from dinosaurs. No all the research is not completely trashed because of this.
dead animal trigger warning 0:22- 0:31
1:08-1:10