THERMAL TYRANNOSAURS

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See my new #paleoart at high resolution and find a link the scientific paper on my website: dontmesswithdinosaurs.com
This video is about my recent collaboration with Dr. Casey Holliday (@CrocHolliday, University of Missouri), reconstructing thermal images of Tyrannosaurs based on new data identifying a temperature control system in the heads of modern birds, crocodiles, and the skulls of numerous ancient dinosaurs and archosaurs.
Direct link to the scientific paper: doi.org/10.1002/ar.24218
Music by Historian Himself
historianhimself.bandcamp.com/
We hope this new discovery inspires you to create #ThermalPaleoart as well, and post it to social media with the hashtag #ThermalPaleoart.
I am on Facebook, IG and Twitter @BrianEngh_art
Shoutouts FLIR Cameras, Kirk Wegener, William Porter, Dr. Larry Witmer, Dr. Mathew Wedel, Dr. Andrew McDonald & the Western Science Center, and Dr. Jessie Atterholt.
All live alligators featured in this video were given snacks for their troubles.

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5 сен 2019

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Комментарии : 119

@user-ze3tq9hf9i 4 года назад

This channel is hugely underrated.

@christainmarks106 2 года назад

Yeah this guy does his homework He’s the real deal

@Usulcardo 4 года назад

0:36 Damn Dr. Casey Holliday looks rad.

@silvertheelf 4 года назад

Decent joke

@gamingwithben1973 3 года назад

Joke? That crocodile worked very hard for its degree thank you very much

@CatsAreAmazing8187 3 года назад

Just The Imposter with internet access you aren’t a very fun citizen, glad I don’t know you irl

@angryt-rex6916 2 года назад

@@gamingwithben1973 gharial actually. Not a crocodile

@aidanrodriguez504 4 года назад

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.

@cracno1125 2 года назад

It's like the Lindybeige of Paleontology RU-vid.

@thedubstepaddict3675 4 года назад

If Theropods are able to see infra red light, this would be also a great display device!

@SenorBigmac 3 года назад

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.

@SevenPr1me 3 года назад

3:52 would have been better than just typing how 3 minutes and 52 seconds lmao

@axelkusanagi4139 3 года назад

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."

@catpoke9557 Год назад

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.

@RandolphCrane 3 года назад

When the music said *aaaAAAAAhhhHH* , I really felt that

@thefloridamanofytcomments5264 3 года назад

Idk why it took me years to find this channel

@cassalamon 4 года назад

Another great video bryan, love how well produced these are, from the narration to the visuals. Also i love that music that plays

@HistorianHimself 4 года назад

salute.

@ottocosentino2654 10 месяцев назад

@@HistorianHimselfspeaking of music, what’s the song that’s used in the background of this video?

@NoName-yr4ke 3 года назад

Guy:dude this trex- Random lady: aaaaaaaa AAAAA aaaaa AA A EEEE AAAAAaaaa eeee aaaa. oooh oooh oohhh ah ooooooh

@SadSpectacle1 3 года назад

These videos are so well executed that I feel like watching a TV documentary.

@user-fp3yc9hm6m 3 года назад

3:45 Damn that was creepy.

@ethoraptor9479 3 года назад

Ikr, thats the stuff of nightmares

@Defenestration700 3 года назад

You have low standards for creepiness

@nathanisdank9208 3 года назад

@@Defenestration700 we got a tough guy right here

@4DocHolliday 4 года назад

Awesome work Brian!!! can't wait to see the next one!

@silvertheelf 4 года назад

Your one of the best, channel deserves more viewers.

@marcospinheiro352 4 года назад

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

@cassalamon 4 года назад

Yay new video!

@floweryomi5351 8 месяцев назад

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

@bm-ub6zc 3 года назад

the music is traumatizing .... 😂👌

@miguelitomarques8 2 года назад

The soundtrack you put on the background is creepy af. I LOVE IT!!

@ianredfield4306 4 года назад

Awesome vid

@oleandreasjensen5263 3 года назад

Exellent and informative video.

@rannva1983 3 года назад

These types videos are what I’m all about.

@LegionarioCruel 3 года назад

I thought it was a well established fact that Tyrannosaurus were warm blooded animals (Ref.: Herman Pontzer, Washington Univesity).

@LucaDeflorian222 4 года назад

Less than 3000 subs for such a cool channel. What a shame. Very interesting video btw.

@kingmeatballs8293 4 года назад

Can you do a 2019 Paleo-art contest.

@YMunesanzun 4 года назад

A GODDAMN SEXUAL TYRANN- Oh wait, just thermal?

@diegolopez3989 4 года назад

Paleo art contest?

@AutodidactEngineer 3 года назад

I thought they were cup holders

@user-ze3tq9hf9i 4 года назад

The music here is pretty good and I guess you made it yourself right?

@HistorianHimself 4 года назад

It was I.

@user-ze3tq9hf9i 4 года назад

@@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.

@ottocosentino2654 10 месяцев назад

@@HistorianHimselfI can’t find this song anywhere, can you by chance let me know what it is?

@HistorianHimself 10 месяцев назад

The remnants of the old Fossil Forest have yet to be released.@@ottocosentino2654

@benjones1717 3 года назад

Makes me think of the tuatara's third eye.

@gadielgonzalez2755 4 года назад

Do birds have something similar to this?

@misterlime2.030 3 года назад

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)

@catpoke9557 Год назад

@@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.

@xamishia Год назад

Fascinating stuff. Btw, your choice of music to go with informational videos is....... quite a directorial choice.

@ottocosentino2654 10 месяцев назад

Do you by chance know what this song is?

@Man-ds9ir 4 года назад

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. ) ?

@ancilodon 3 года назад

Yet another reason to marvel at the living animals that so many people are just afraid of

@Fordmister 3 года назад

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!

@RogueT-Rex8468 3 года назад

..... 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.

@NaturalPlanetHQ 3 года назад

@@RogueT-Rex8468 I totally agree, plus some tyrannosaurines lived in places were it got freezing, and not freezing as 20 Fahrenheit, but much lower as -30 or -40 Fahrenheit. But then the summers would be warmer or about 50 degrees Fahrenheit. So the could just regulate that way.

@catpoke9557 Год назад

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.

@jeffryder9 3 года назад

anyone know what the music is?

@SenorBigmac 3 года назад

On Nitpick guanlong was late Jurassic

@ottocosentino2654 10 месяцев назад

What's the song in the background of this video?

@dontthrowthedwarf 4 года назад

man, your voice is bad ass. sounds made to talk about the most bad ass animals on the planet

@inverted_image.6076 5 месяцев назад

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.

@potsmokindino 2 года назад

I just notice an error in the video. Guanlong is from the Late Jurassic, not Cretaceous.

@z3r0fucksgiven59 Год назад

Name of background track? Very relaxing for study.

@Chebab-Chebab 3 года назад

03:45 Eyes.

@jacobcrowder4920 3 года назад

My favorite dinosaur is the meeting bowl for short it's actual name is of kind of hard to pronounce.

@georgehunter2813 3 года назад

The biomechanics of Dimetrodon lives on in the crocodilians. Gotta warm up in the morning.

@TheRoomforImprovement 3 года назад

Hey when you say non bird dinosaur, What do you mean? I thought most dinosaurs were more like birds?

@austinhinton3944 3 года назад

Any species closer to maniraptoran theropods than to Neoaves (living birds)

@isodoublet 2 года назад

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?

@Francois2144 4 года назад

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.

@alphatrion100 3 года назад

Closest relatives are birds

@daryanasaurus9785 4 года назад

It proves dinosaurs were warm blooded Does it

@aebhosor4835 3 года назад

Did they really killed a baby croc and dissected it? 🥺🥺🥺

@ethoraptor9479 3 года назад

It might of been found dead, but I guess it is a possibility. RIP baby croc

@thedeathwobblechannel6539 3 года назад

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?

@thedeathwobblechannel6539 3 года назад

also makes one wonder about teh animal's coloration and it's influence to heat regulation.

@TaterChip91 4 года назад

Dude you are a fucking maverick 👍👏👏

@dynamosaurusimperious6341 3 года назад

So basically Tyrannosaurus was warm boi.

@misterlime2.030 3 года назад

5:34 it's a nightmare chicken

@daspletoraptor8366 4 года назад

Your narration can be a bit dramatic, but all in all not bad.

@mstalcup 4 года назад

He has the perfect voice for it. I sense that the excitement in his tone is genuine.

@KossolaxtheForesworn 3 года назад

so would this mean dinosaurs were cold-blooded.

@vincenzocapasso9990 3 года назад

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.

@ethoraptor9479 3 года назад

It’s always a possibility

@muhamadsayyidabidin3906 3 года назад

@@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.

@vincenzocapasso9990 3 года назад

@@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

@vincenzocapasso9990 3 года назад

@@muhamadsayyidabidin3906 plus monitor lizards are very compatible with cold blood due to anatomy and lifestyle, meanwhile dinosaurs aren't really that much

@MegaMark0000 Год назад

THis would imply dinoaurs were cold-blooded, no?

@DinosaursReanimated Год назад

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.

@Indy44636 Год назад

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.

@darkhumour741 4 года назад

you should do asmr 😍

@chesterbesterfeild 3 года назад

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

@arlahunt4240 3 года назад

I hear this screaming woman in the background. Other than her high pitched sound, which was off putting, u really liked this video.

@JustyMe 3 года назад

The music made me anxious lol

@TheMightyN 3 года назад

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.

@_Dinops 3 года назад

To be fair crocodilians are dinosaurs closest living relatives

@TheMightyN 3 года назад

@@_Dinops Of course, but they don't share the same body plan though.

@_Dinops 3 года назад

@@TheMightyN true

@theacro3472 3 года назад

Well crocodilians are closer related to birds thn they are to snakes

@waynetemplar2183 3 года назад

Birds are toothless, tailless feathered theropods. They're not close relatives to dinosaurs they ARE dinosaurs

@rundabjorn345 3 года назад

amazing video but the music is very annoying.

@viccolasvic9461 3 года назад

dead animal trigger warning 0:22- 0:31 1:08-1:10

@WreckitraphAKAForkas 3 года назад

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.

@trystennishioka7880 2 года назад

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?

@dynamitestalker4219 2 года назад

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.