It’s a shame most of us are only taught about them so early in school, because it makes people write dinosaurs off as kid stuff. Archiving pre-history is important
Zion Ray no they’re not. Birds/Dinosaurs are warm blooded animals with unique and complex biological systems and organs and the unique, signature skin covering of feathers. Reptiles are the opposite of all that, and feature only scales, which differ from the type of scales found on birds and dinosaurs in the areas they lack feathers.
As a dinosaur nerd from birth and tyrannosaur specialist i loved this video. maybe next do a video about the display in protoceratops. there is an interesting paper about it.
They still are featherless. There was a movement that pushed back against that "theory". If anything, most findings are guesses at best. There is even an argument now that Triceratops (one of my faves) may have been a juvenile Torosaurus. BTW, I think Pluto has been renamed or in the process of being renamed a planet. SMH
@@timg1099 There's been dinosaurs who have been discovered with feathers next their bones though hasn't there? Anything to do with dinosaurs is a guessing game. That tricerotops being a juvenile of torosaurus sounds like one. You have to wonder if paleontologist discovered fossils of polar bears and grizzlies/brown bear that were millions of years old they would come up with the conclusion that grizzlies are juveniles of polar bears as they live around the same time and same location. Lions and tigers also have very similair skulls and look so different and live differently as one is a pack hunter and the other solitary. Paleontologist might make same mistake with them as asiatic lions are found in india just like tigers.
@@toby772 The few with feathers are exactly that, a few. Since when does this account for a good portion of the majority? This feather argument has been going on and is taken as and spoken of as FACT vs a hypothesis let alone a "theory" (or forbid) a law. Other than that, you've pretty much fleshed out what I've said regarding dinosaurs. The issue that I have is that people tend to hear something and take it as ultimate gospel vs looking at the evidence themselves and questioning how it fits on a bigger spectrum. "Oh you see that 3 meter bone right there? It belonged to a FACT-osaurus. The only one of its kind ever found, drastically incomplete. And it had feathers. Yeah that's right, that 3 meter bone that belonged to a multi-tonned animal had feathers! You want to know why? Because we found a complete fossil of something way smaller that had them and we ran with it. Thus they ALL (dinosaurs) had them. " That isn't a guessing game. That is totally different. Beyond assumption. Somewhere along the line the theory became scientific law and is being shouted at the public while weighted counter arguments are being whispered. I like dino's as much as any, but I like being able to think, reason and research for myself even better.
My theory is that feathers are an ancestral trait of the Ornithodirans/Avemetatarsilans, the group that includes Dinosaurs and Pterosaurs, and that the feathers were used to keep them warm in the cold desert nights. But when the planet warmed up and the dinosaurs became huge, adult animals began to shed their feathers, at least when they were a certain size. But animals living in the North were obvious exceptions.
@@cvhinson1 , many of the same family or close families have feathers. Another point is that they have evolved into birds. (Btw this is simple things that I can remember so it might not be the most accurate.
@@highlandus sure, because the science shouldn't be based on factual evidence and informed theories but rather your level of comfort regarding the information. what's your idea of realistic dinosaur depiction, a land before time?
Henry the PaleoGuy you probably weren’t aware but Nanuqsaurus is not considered a sister taxon to Terataphoneus based on new research I don’t blame you for not knowing since it was a recent revelation
It seems like a pretty awesome coincidence that both you and Ben G Thomas uploaded videos about tyrannosaur species in a certain geographic respectively.
Thanks to guys like you Henry or Ben G Thomas, suddenly I feel 40 years younger reading my books and playing with my Starlux dino/prehistoric mammals collection. And yeah I guess you should bring some Carbon-14 to spot 1974 th year I was born! Happy New Year from the antipodes and take care sir. Tawny owls every night this winter
Dino Klaus! Love the scarves and hats of the last picture. Reminds me of the polar bear and seal Coke commercials with the beach balls. Thought those ads were rather cute.
Awesome video! i just love tyrannosaurs. They are my favorite group of coelurosaurian theropods. Maybe you could do a video about Qianzhousaurus and the naming of the alioramin tribe within the tyrannosauridae.
I know in Antarctica, large Amphibians remained long after the Permian extinction. Did large Amphibians thrive up in the Artic, too? To be this Tyranasaur's food source in the winter? This was way before marine mammals, of course. It was cold, but not as cold as it is today.
This is a seperate genus to Tyrannosaurus. A different species of the genus Tyrannosaurus would still have the genus name, but would have a different species name.
@@Deoix9877 There are still arguments for ectothermic and partially endothermic species, as well. However, it does seem obvious that when you go far enough north, land dwelling reptiles become rare. It is something I am still learning about.
@The Dinosaur Heretic The arguments have lasted for years about different species. The dinos were around for a long time and show a lot of evolutionary change. Of course, it is obvious that the dinos that evolved into birds were endothermic. Why would a critter need insulating feathers if it were cold blooded?? You are pretending to know things that are not known, for what appear to be egocentric reasons. Dinos evolved from reptiles. It is not known when the first endothermic or partly endothermic animals evolved. I made a very simple statement and some insecure people here saw it as an opportunity to pretend to be paleontologists. The very first proto mammals had many traits that modern mammals do not have. I made a very simple statement, a true statement, that some of you want to be arrogant assholes about, trying to demonstrate how bright and well educated you are. Get your ego out of this and it will be a lot easier to learn more. Dinosaurs were around and evolving for a very, very long time. Now, kindly take your ego and fuck off. You are wasting my time for no good reason. i was around in the early days of this discussion when Scientific American was printing early arguments for endothermic dinos. I always like the terrestrial dinos found in the very far north because they absolutely had to be warm blooded. They are also relatively recent discoveries. Now go talk to yourself,
@@macnutz4206 dude, the only person being an asshole here is you. You said your point of view and me and the other person tried to engage in conversation with our own points of view. That's how debating works, you know, one of the basis of modern science At no point anyone has been disrespectful to you, all he did were ask for your sources, to see if you were actually right, and adapt their point of view in base of that You are the one who decided to take that as an ofense and started insulting and being disrespectful. Wich ultimately takes away credibility to anything you are trying to say, since it gives the image that you are unwilling to defend your point of view and unable to handle criticisim towards it. But, since you want to act all mighty, it might interest you to know that current evidence points at the ancestor of ALL dinosaurs to already be feathered, since pterosaurs, wich were the closest relatives to the dinosaurs, also seem to be covered in dinofuzz, wich could very likely mean that it was a trait that apeared before either of the two groups apeared. Therefore, is logical to think that all dinosaurs were endothermic, since, as you said, feathering doesnt make sense on a cold blooded animal I would sugest you try to come to terms that people can have ideas that contradict your own, instead of getting butthurt anytime someone's just mentions the oposite, or even just asks you what made you have that opinion.
@Casey Thorne Aw man, are you telling me that picture of dinosaurs wearing clothing isn't accurate? Because judging by the content on your channel, I honestly can't tell if you're serious or not right now. :D
Derived means more changed, while ancestral means less changed (basal or primitive). We don’t really think of things as being “more or less evolved” in biology, just what the adaptations are, how effective they are, and how recent they are.
Why would they give it white skin like a polar bear? The land it was on was closer to the equator, since continental drift didn't reach the north pole yet.
They certainly are! First one must understand that "reptile" doesn't have the same meaning in modern classification of animals that it used to. Birds evolved from certain theropod dinosaurs, so they are still technically dinosaurs. Dinosaurs, as well as crocodylomorphs (crocodiles and their wide variety of extinct relatives) and pterosaurs (pterodactyls and their wide variety of extinct relatives) all evolved from a particular group of true reptiles called archosaurs. Because of this, despite the fact that modern crocodiles and lizards for example may resemble each other superficially on the outside, crocodiles are genetically closer to birds. One of the important things about modern taxonomy (classification) is that you cannot outgrow your ancestry. Hence, despite having feathers, being warm blooded and challenging what the laymen thinks of as "reptilian," birds, along with all dinosaurs, are still considered reptiles. Mammals on the other hand, were never true reptiles at any point with their ancestry splitting before the first "true reptiles" evolved. We do however, have a closer ancestry with reptiles than reptiles do with amphibians.
Bergmann’s Rule predicts that, in endothermic animals, representatives from colder climates would be larger to conserve heat, while those from warmer climates would be smaller.
Ferenc Nagy I guess they use the closest relatives of the fossils to estimate the rest. After that it’s probably a bit of a guessing game based on animals with a similar lifestyle (i.e. wings need a certain amount of muscles to make an animal fly and these muscles need to be connected to some bones somewhere).
Albertosaurus and Gorgosaurus are albertosaurine tyrannosaurids (eg. family Tyrannosauridae, subfamily Albertosaurinae). He specifed that Nanuqsaurus is a tyrannosaurine tyrannosaurid (eg. family Tyrannosauridae, subfamily Tyrannosaurinae).
I had a weird obsession with dinosaurs when I was a kid and now it has come back, I can't stop watching these types of videos, keep it up!
One would think you were more into clowns
Lol
It’s a shame most of us are only taught about them so early in school, because it makes people write dinosaurs off as kid stuff.
Archiving pre-history is important
Based on your user name, one might think you had a lot of weird thoughts in your lifetime.
Tom C Well, you definitely aren't wrong lol.
Ohh how I wish I could go back and see these ecosystems....
Than get eaten
@@frostbitetheannunakiiceind6574 Then*
@@frostbitetheannunakiiceind6574 I'll be a happy turd.
Meee toooooo 🤙
Same here, not a common dream though.
Polar Bear Lizard. That's lovely.
I actually put this dinosaur in a hybrid I made.
The Poke'Saurus it’s not a lizard it’s a bird
picklickwick well that’s what it’s name means sooo
@@DirtyJeans Ironic since its not a polar bear or a lizard.
@@picklickwick birds are reptiles
Zion Ray no they’re not. Birds/Dinosaurs are warm blooded animals with unique and complex biological systems and organs and the unique, signature skin covering of feathers. Reptiles are the opposite of all that, and feature only scales, which differ from the type of scales found on birds and dinosaurs in the areas they lack feathers.
When you realize this is a overgrown penguin
Checks out.
Fun fact, penguins live only at south
I'm not a penguin🐧🚫
No not at all
Now I know what a cross between a polar bear & trex looks like.
Bad assed!
To be fair, I think that was an artistic liberty taken by the artist.
The illustrations used in this episode make me so happy. For once someone bothers to put feathers on a tyrannosaur.
I like the winter garments on those tyrannosaurs near the end of this video; that's a brilliant idea you have included by including that picture!
Nanuqsaurus needs more love. Please do a video about Yutyrannus.
That well be cool to learn about To no what it did with it live
About its white winter fur, i was looking for a bipedal reptile that lives in an icy region for my mayincatec fantasy.
Yeet tie r annus
@@Crusader-Ramos45 dinosaurs are not reptiles so you wont find one here.
But they are reptiles...😂
As a dinosaur nerd from birth and tyrannosaur specialist i loved this video. maybe next do a video about the display in protoceratops. there is an interesting paper about it.
"When I was a kid, Pluto was a planet, and dinosaurs were featherless!"
They still are featherless. There was a movement that pushed back against that "theory".
If anything, most findings are guesses at best. There is even an argument now that Triceratops (one of my faves) may have been a juvenile Torosaurus.
BTW, I think Pluto has been renamed or in the process of being renamed a planet.
SMH
@@timg1099 There's been dinosaurs who have been discovered with feathers next their bones though hasn't there?
Anything to do with dinosaurs is a guessing game. That tricerotops being a juvenile of torosaurus sounds like one.
You have to wonder if paleontologist discovered fossils of polar bears and grizzlies/brown bear that were millions of years old they would come up with the conclusion that grizzlies are juveniles of polar bears as they live around the same time and same location.
Lions and tigers also have very similair skulls and look so different and live differently as one is a pack hunter and the other solitary. Paleontologist might make same mistake with them as asiatic lions are found in india just like tigers.
@@toby772
The few with feathers are exactly that, a few. Since when does this account for a good portion of the majority?
This feather argument has been going on and is taken as and spoken of as FACT vs a hypothesis let alone a "theory" (or forbid) a law.
Other than that, you've pretty much fleshed out what I've said regarding dinosaurs.
The issue that I have is that people tend to hear something and take it as ultimate gospel vs looking at the evidence themselves and questioning how it fits on a bigger spectrum.
"Oh you see that 3 meter bone right there? It belonged to a FACT-osaurus. The only one of its kind ever found, drastically incomplete. And it had feathers. Yeah that's right, that 3 meter bone that belonged to a multi-tonned animal had feathers! You want to know why? Because we found a complete fossil of something way smaller that had them and we ran with it. Thus they ALL (dinosaurs) had them. "
That isn't a guessing game. That is totally different. Beyond assumption.
Somewhere along the line the theory became scientific law and is being shouted at the public while weighted counter arguments are being whispered.
I like dino's as much as any, but I like being able to think, reason and research for myself even better.
illerac84 and there were only 2 sexes
Most are featherless. Most feathered dinosaurs are birds, non avian maniraptorian dinosaurs, maniraptiform dinosaurs, and some Coleosaurians .
love the last image with them wearing hats and scarves
Thought it would bring a little bit of humour to the video. :)
My theory is that feathers are an ancestral trait of the Ornithodirans/Avemetatarsilans, the group that includes Dinosaurs and Pterosaurs, and that the feathers were used to keep them warm in the cold desert nights. But when the planet warmed up and the dinosaurs became huge, adult animals began to shed their feathers, at least when they were a certain size. But animals living in the North were obvious exceptions.
Very interesting theory, makes sense to me
The whole feather idea has been taken to far
of the 55 sets of t-rex skeletons found, NONE HAVE FEATHERS, yet scientists are taking artistic license and adding them. Someone explain why.
@@cvhinson1 , many of the same family or close families have feathers. Another point is that they have evolved into birds. (Btw this is simple things that I can remember so it might not be the most accurate.
@@highlandus sure, because the science shouldn't be based on factual evidence and informed theories but rather your level of comfort regarding the information. what's your idea of realistic dinosaur depiction, a land before time?
Thought that I was looking at a polarbear in the thumbnail 👀😅😂😂🙃 happy new year every one
Same
If I had known you were gonna use my skeletal I would’ve provided you with the better skeletal I had made lmao
Good video tho!
Unfortunately didn't know about it! :)
Henry the PaleoGuy you probably weren’t aware but Nanuqsaurus is not considered a sister taxon to Terataphoneus based on new research
I don’t blame you for not knowing since it was a recent revelation
*now
Looks brilliant. Typical of the greats... You guys are seldom satisfied with your work, while we love it.
Why does this dudes voice make you want to keep watching his videos? Interesting.
What I hear: Nanuqsaurus
What my humorous side hears: DaFuqsaurus
Thanks again for all the info you give us about these amazing ancient creatures.
5:16 love the ending picture where the nanucksaurs is wearing a scarf and hat
Nice to know how diverse and dominant Tyrannosaurs were.
It seems like a pretty awesome coincidence that both you and Ben G Thomas uploaded videos about tyrannosaur species in a certain geographic respectively.
Missed opportunity, the next one should be named: Santasaurus
On re-watch after years, I like it even more. Great stuff!
Great video, as always!
Thanks to guys like you Henry or Ben G Thomas, suddenly I feel 40 years younger reading my books and playing with my Starlux dino/prehistoric mammals collection. And yeah I guess you should bring some Carbon-14 to spot 1974 th year I was born! Happy New Year from the antipodes and take care sir. Tawny owls every night this winter
Never heard about this dinosaur before so i've learned something new.
You should do a video on the terror birds when you got the time.
Nobody:
Paleoguy: snow dinosaurs.
Stop.
Go.
I don't get it
Ah, nanuqsaurus, my spirit animal.
The real Nanotyrannus
Use this polar bear dinosaur to advertise Coca Cola
,💕💕😂😂
Me: "Dinosaurs will never get me up here in the North Pole....."
Nanuqsaurus: "Why hello there!"
The last picture with the scarves. Gold.
Was great to find that image. :)
Dino Klaus! Love the scarves and hats of the last picture. Reminds me of the polar bear and seal Coke commercials with the beach balls. Thought those ads were rather cute.
Awesome video! i just love tyrannosaurs. They are my favorite group of coelurosaurian theropods. Maybe you could do a video about Qianzhousaurus and the naming of the alioramin tribe within the tyrannosauridae.
Hairy t.rexes with scarfs on. Best recreation I've ever seen.
Does anyone know who created the very first T.rex art in this video @0:00 ?? it's the most amazing T. rex art I've ever seen 😮👍
Wonderfully made!
His arms are adorable
I know in Antarctica, large Amphibians remained long after the Permian extinction. Did large Amphibians thrive up in the Artic, too? To be this Tyranasaur's food source in the winter? This was way before marine mammals, of course. It was cold, but not as cold as it is today.
Ah just think of all the creatures that existed that we will never know of... The possibilities are endless...
It’s pretty obvious that the thumbnail is some animal (probably a polar bear) combined with a dinosaur head
So glad the last image pointed out the silliness of dinosaurs in the snow. I was going to make a snarky comment about igloos.
What about the as bad furry Dinosaur?
How is it silly? Just because Earth was warmer during the Mesozoic doesn't mean winters didn't exist. That's just ignorant.
@@KhanMann66 that's what I thought as well, how dumb must you be
it’s crazy how much they can tell from bones using barely any fragments
It's mostly by comparing those fragments to more complete fossils of animals that appear to be close relatives.
Fun Fact: The Gorgosaurus in March of The Dinosaurs, And Walking With Dinosaurs Movie 3D, Is Well You May Have Geussed.. IS A NANUQSAURUS.
Great video loved dinosaurs
So what I got out of that was there are different species of Tyrannasorus like dinosaurs as like different types of cats, bears and canines.
This is a seperate genus to Tyrannosaurus. A different species of the genus Tyrannosaurus would still have the genus name, but would have a different species name.
That dinosaur in the thumbnail looks like an polar bear.
I also had a weird obsession with dinosaurs and now I have it
The same. :)
glad to be in the video
I starting to like Nauquasaurus,aka (Polar Tyrant).
The thumbnail makes him look like a cute polarbear.
Hasn't recent analysis found Nanuqsaurus to be much closer to other tyrannosaurines like rex and tarbosaurus than previously thought?
It really does look like a combination of a t-rex and a polar bear. lolz
amazing to learn about a truly fascinating animal
Anyway you could do a video on the evolution on owls? I've been trying to research them more and cant find any good or relevant data
Nanuqsaurus is no longer thought to be a dwarf tyrannosaur it's new size is now though to be more similar to daspletosaurus
I didn’t know they lived in snow areas
Who else waited for Henry to say: "Nanuqsaurus" each time...?
Ok, just me then... 😊👍🏼
After I watch ever dinosaur video on youtube I might finally be good at the isle
Gorgasaurus?
the dinosaur in the thumbnail looks incredibly mammalian
He baby :o I mean, baby in comparison with other tyrannosaurs... could definitely still kill me easily. But very baby, very cute
I’ve written a dinosaur trilogy and my first book uses Nanuqsaurus as my main characters during the KT
If dinosaurs lived so far north how did they stop their eggs freezing???
Sufficient nesting materials and a lot of brooding.
It does seem that the dinos in the north must have been endothermic.
I'm pretty sure at this point it's pretty accepted that dinosaurs in general were warm blooded.
@@Deoix9877 There are still arguments for ectothermic and partially endothermic species, as well. However, it does seem obvious that when you go far enough north, land dwelling reptiles become rare.
It is something I am still learning about.
@The Dinosaur Heretic The arguments have lasted for years about different species. The dinos were around for a long time and show a lot of evolutionary change. Of course, it is obvious that the dinos that evolved into birds were endothermic. Why would a critter need insulating feathers if it were cold blooded??
You are pretending to know things that are not known, for what appear to be egocentric reasons. Dinos evolved from reptiles. It is not known when the first endothermic or partly endothermic animals evolved. I made a very simple statement and some insecure people here saw it as an opportunity to pretend to be paleontologists.
The very first proto mammals had many traits that modern mammals do not have.
I made a very simple statement, a true statement, that some of you want to be arrogant assholes about, trying to demonstrate how bright and well educated you are. Get your ego out of this and it will be a lot easier to learn more.
Dinosaurs were around and evolving for a very, very long time.
Now, kindly take your ego and fuck off. You are wasting my time for no good reason.
i was around in the early days of this discussion when Scientific American was printing early arguments for endothermic dinos.
I always like the terrestrial dinos found in the very far north because they absolutely had to be warm blooded. They are also relatively recent discoveries.
Now go talk to yourself,
@@macnutz4206 dude, the only person being an asshole here is you. You said your point of view and me and the other person tried to engage in conversation with our own points of view. That's how debating works, you know, one of the basis of modern science
At no point anyone has been disrespectful to you, all he did were ask for your sources, to see if you were actually right, and adapt their point of view in base of that
You are the one who decided to take that as an ofense and started insulting and being disrespectful. Wich ultimately takes away credibility to anything you are trying to say, since it gives the image that you are unwilling to defend your point of view and unable to handle criticisim towards it.
But, since you want to act all mighty, it might interest you to know that current evidence points at the ancestor of ALL dinosaurs to already be feathered, since pterosaurs, wich were the closest relatives to the dinosaurs, also seem to be covered in dinofuzz, wich could very likely mean that it was a trait that apeared before either of the two groups apeared. Therefore, is logical to think that all dinosaurs were endothermic, since, as you said, feathering doesnt make sense on a cold blooded animal
I would sugest you try to come to terms that people can have ideas that contradict your own, instead of getting butthurt anytime someone's just mentions the oposite, or even just asks you what made you have that opinion.
Great video and more realistic 👍
Nanuqsaurus another my favorite dinosaur
I especially like the overhead image of Nanuqsauruses wearing a toque and scarf :-)
Dinosaurs didn't wear toques and scarfs.
They didn't wear feather coats either.
@Casey Thorne
Aw man, are you telling me that picture of dinosaurs wearing clothing isn't accurate? Because judging by the content on your channel, I honestly can't tell if you're serious or not right now. :D
You should do yutyrannus Huali too! My favorite tyrannosaur. Gotta love them fluffy giants.
I actually thought the image in thumbnail was a seal with a dog mouth
Pretty cool.
Truckosaurus is still mt favorite.
Cool name for tyrannosaurus Can you make a video about Saltriovenator zanellai. Great video learning about tyrannosaurus is awesome
Tyrannosauriod. Not tyrannosaurus. They're not the same.
@@KhanMann66 I thought they wound part of the Tyrannosaurus tree
My favorite carnivorous dino.
Im curious about Dravidosaurus...since its recently become a Stegosaur again
Colin Mathura-Jeffree Davidosaurus??? That's a wierd name for a dinosaur.
There was no snow in those days
With only fragments of a skull how can they come up with a full skull shape like that?
Inferences from other related animals.
_The _*_Nanu-nanu_*_ dinosaur!_
Where did you find that map??? I need thay for my class! Wow!!!!!
The one at 3:30, I presume. It's on google if you search up the Western interior seaway during the Creataceous.
Lol. Love the dino scarfs
How many sets of remains have been discovered? Were the remains found with fur?
Fearsome? They look adorable!
And so do polar bears and orcas
All I can think is "this guy is the great-grandpappy of the modern polar bear!" ~Awesome~ 😎😎😎
At 4:23 you know the trex does kind of look like a polar bear
It's not t rex. But yes its supposed to depict a similarity to the animal despite us not knowing what it actually looked like
I thought it was mutated polar bear on thumbnail 😂
So, unless there are reptiles in Alaska. I think it's pretty sure that most dinosaurs were to some degree warm blooded.
I love polar dinosaurs! They're so unexpected X3
What does derived mean in the biological sense? A more evolved form of tyrannosaurs (in this case)?
Derived means more changed, while ancestral means less changed (basal or primitive). We don’t really think of things as being “more or less evolved” in biology, just what the adaptations are, how effective they are, and how recent they are.
Well if this is true,it answers the question for me that dinosaurs were definitely warm blooded.
Why would they give it white skin like a polar bear? The land it was on was closer to the equator, since continental drift didn't reach the north pole yet.
Polar bears have black skin underneath their white fur
Trudging across the tundra mile after mile.
This is probably a stupid question, but would dinosaurs still be considered reptiles? Given they have feathers and other filaments
They certainly are! First one must understand that "reptile" doesn't have the same meaning in modern classification of animals that it used to.
Birds evolved from certain theropod dinosaurs, so they are still technically dinosaurs. Dinosaurs, as well as crocodylomorphs (crocodiles and their wide variety of extinct relatives) and pterosaurs (pterodactyls and their wide variety of extinct relatives) all evolved from a particular group of true reptiles called archosaurs.
Because of this, despite the fact that modern crocodiles and lizards for example may resemble each other superficially on the outside, crocodiles are genetically closer to birds. One of the important things about modern taxonomy (classification) is that you cannot outgrow your ancestry. Hence, despite having feathers, being warm blooded and challenging what the laymen thinks of as "reptilian," birds, along with all dinosaurs, are still considered reptiles.
Mammals on the other hand, were never true reptiles at any point with their ancestry splitting before the first "true reptiles" evolved. We do however, have a closer ancestry with reptiles than reptiles do with amphibians.
thought you wee gonna sneak in some taun-taun pics bro
By assumption this Tyrannosaurid would have been endothermic, and living in this harsh cold environment would have to be smaller so not lose heat.
Bergmann’s Rule predicts that, in endothermic animals, representatives from colder climates would be larger to conserve heat, while those from warmer climates would be smaller.
All theropods were endothermic
Nice Video! And I thought polar bears were scary
I think Nanuqsaurus should our Christmas dino.
I always wonder how paleontologist reconstruct large animals from incomplete fossils.
Ferenc Nagy I guess they use the closest relatives of the fossils to estimate the rest. After that it’s probably a bit of a guessing game based on animals with a similar lifestyle (i.e. wings need a certain amount of muscles to make an animal fly and these muscles need to be connected to some bones somewhere).
By seeing the thumbnail I thought polar bears are evolving
dhanush chandra nakkalakunta xD
I have a Nanuqsaurus or 2 in the sequel to my remake of Jurassic Park. I call them "PaleoPrime"
Aren’t Albertasaurs Tyrannosaurs?
Albertosaurus and Gorgosaurus are albertosaurine tyrannosaurids (eg. family Tyrannosauridae, subfamily Albertosaurinae). He specifed that Nanuqsaurus is a tyrannosaurine tyrannosaurid (eg. family Tyrannosauridae, subfamily Tyrannosaurinae).
What a beauty