nice video. i was born in 1964, as a child i wanted to become a paleontologist. I remember the "warm blooded dinosaur" being a new thing when I was growing up. I love the information we have now, it's much different than what i grew up with. A pack of ground running hawks, with serrated teeth and 10 inch claws? Terrifying LOL
That's awesome that you saw it firsthand! Must have been a very controversial time given how much it's changed the image of dinosaurs! Also I'm glad you appreciate that it would STILL mean they're terrifying lol 😅
@@dino-gen feathers were once a radical idea as well, Archaeopteryx changed that ;) Yeah, feathers and a close relation to extant raptors, terrifying stuff. Dromaeosaurs are awesome sauce.
"A pack of ground running hawks", each hawk weighting 100 kilograms. the closest comparison to aves we can get it's Kelenken (terror bird), although unfortunatelly they also went extinct long ago. (or fortunatelly lol)
I never forgot about Archaeopteryx (hope I spelled it right). Have this old Dinosaur World Atlas from the 90s, where all of them are shown with scales and some dragging their tail. Except for this proto-bird, it was drawn with feathers. Bit inconsistent, outdated but I read through it like 20 times or more. :)
I like to imagine that their claw was to climb thoses giant trees they had back then, and fall on their prey. That would evolve them feathers over time to help control their descent, and then get ability to fly when the body size reduce
I was thinking the same thing about dropping from trees. I remember a video showing how birds will use their wings to help them climb trees. I think they uses domestic chickens for the demonstration. This was from back when they were trying to decide if dinosaurs had feathers.
Great job on this. I too was an 8 year-old telling adults I would be a Paleontologist. My favorite will always be the Triceratops. I had the pleasure of visiting an awesome Dinosaur museum in Montana with a display of about 15 Triceratops heads from youth to adult. Looking forward to more content, as I sit in my Dino PJ's at age 67.
Oh man, I think I went to that same museum last year! I don’t remember what it was called but I do remember it also had a gigantic case full of t-rex skulls. It was pretty awesome.
The idea Deinonychus couldn’t hunt in packs because it wasn’t a mammal, fought among its own species and didn’t live in family groups has some major issues-all these arguments are based on OUTDATED ideas about modern animal behaviour, and plenty of extant cooperative predators break one or more of these rules.
the whole individualistic instead of social thing that they pushed onto everything the past has given us so much trouble in so many ways in our civilization. its not surprising that this bias bled into science.
Saying Deinonychus couldn’t hunt in packs because it “wasn’t a mammal” is liking saying cavemen couldn’t start fires because it was hot. It makes no sense, lol.
@@paleospino4956 It’s based on the idea pack hunting is supposedly a mammalian trait, which ignores that a) pack hunting (by this I mean genuinely cooperative hunting, so excluding prey mobbing but including cooperation outside of animals living in family groups) in non-mammals is far more common than often assumed, and b) pack hunting is the minority in mammals.
I really like Deinonychus, Recently he's been overshadowed by Utah and Maip because the bigger=better mentality. But I'll always appreciate him as the kickstarter to a new generation!
Utahraptor is actually a more basal, chunky dromaeosaurid, just like the Middle-Eastern, Achillobator. It lived quite a few million years before Deinonychus. The actual dromaeosaurid that best resembled an "oversized Deinonychus" was Dakotaraptor, which could well be its dirrect descendent.
I had a Dinosaur book by Dougal Dixon, one of the good ones that smell like knowledge and science. It featured the most outdated - at that time - illustration of Deinonychus antirrhopus you can imagine and a smaller one that hinted it may have had feathers. Now we know it likely did and so much more but everytime I hear the word - or watch JP with its obvious Non-Raptors - I smell that page again in my head😅
@@georgeburns7251 I'm not who you meant but ... sure, everyone does ?! Firm, dry, quick. That's the ideal bowel movement, right? for your rude comment I wish you the exact opposite for a full week ;)
Fantastic quality summary of a paradigmatic creature, its emergence as a springboard by a pivotal scholar in the field, all toward a fuller, richer landscape for the Mesozoic generally. Please give us more!
Great video! Very well presented, informative, down-to-earth! Great stuff! Only one thing I would point out, the Komodo dragon part shows an Asian water monitor (Varanus salvator). It is hard to distinguish their difference for people that never worked or studied them V. salvator is much less bulky, dark top, yellowish underside, square head, and purple tongue. V. komodoensis is extremely bulky, usually unison colouration of grey, massive bulky head and jaws, and a yellow tongue. Neverthless, liked and subscribed and looking for more content!
Thank you! To be honest, I do appreaciate down to earth, straight to the point, honest educational videos! Especially, when the majority so-called educational videos on UA-cam are way over the top, awfully ostentatious, misleading info and wannabe funny, often coming from America. Science should be treated with dignity and top research! And that is why I am always happy to find someone like you on UA-cam! Well Done!
To be fair, Jurassic Park came out before it was realized that some dinosaurs had feathers. Aside from a few liberties taken for entertainment purposes the movie tried to represent the most current scientific views of the time.
its more like the cgi technology at that time still can't keep up for depicting dino with feathers. Because in 1980s there are already discoveries about dinosaur with feathers.
@@kotarojujo2737 Those who stated the feathered Dino theory then were laughed at until they found the archeopterx fossil complete with its unambiguous plumage
Deinonychus probably was on the higher end of the scale when it comes to dinosaur intelligence but they almost certainly weren't as clever as the Jurassic Park raptors. Lions hunt in packs too - but aren't as clever as orcas, or chimps. They were not stupid but setting traps and opening doors probably wouldn't be realistic.
No most certainly not. But, then again, there are many types of intelligence. Crows and pigeons are most definitely not as smart as us, but have a much better memory than us. I’d be very interested to know what types of intelligence a dromaeosaur like Deinonychus had 🤓
@@dino-gen absolutely. It wasn't meant as a put down or to imply "dumb dinosaurs". Parrots and Corvids are pretty damn smart so there's definitely intelligent dinosaurs out there.
Open doors doesn't require much intelligence, a common household cat can open doors, and cats are not anywhere near as intelligent as some birds are. If they reach dog-level intelligence then trap setting and opening doors is well in realm of possibility. African wild dogs set traps and hunt in coordination that is just astonishing to watch.
@@3characterhandlerequiredYeah. People seem to overestimate the level of intelligence required to problem solve and strategize. It's beneficial to any animal to be able to figure out how mechanisms work or how to trick others into falling for schemes. Individually, members of a species usually can't all do it but most are intelligent enough that they as a species can. As in, not every cat can figure out how to open a door, but cats as a species definitely can and do sometimes. Any animal of a similar intelligence to a cat will probably be able to figure it out too, potentially even on accident.
I don't think they were ever misunderstood! It's just too much that is unknown about all dinosaurs, & it's learn as you go! Just don't stop learning more about them, otherwise they'll surprise us all again!! With something ever greater!!
Watch a roadrunner hunt. I think it is as close as any living creature gets to how some of these creatures moved and behaved but on a different scale with a slightly different architecture.
This raptor and Parasaurolophus were my faves growing up. Like until 10, I struggled with school, unless it was dinosaur related. Used to spend hours drawing Deinonychus.
You should see Tenontosaurus in the Isle game. They made it a superb model. And it uses its tail along with kicks for offensive attacks. I've hunted Tenontosaurus as a Carnotaurus though aha. Troodons and Utah raptors are in the game also. Though for some reason the Utah is now called Omni raptor. Though, you'll see no feathers on them. But is a great game to play and check out if you are interesting in dinosaurus. It is remarkably realistic in many ways, just as it is unrealistic in many other ways,
Whoa, great channel. As someone who has been casually into dinosaurs my whole life, this breakdown added so much nuance I had no idea about. Thank you, ez sub!
While a (1980-ish) university undergrad, in a bio-psychology course (Evolution of Social Behavior), we compared the brain development from Lamprey on along phylogeny to Primates. I was (semi-oddly) assigned the term paper topic of whether Dinosaurs were ectothermic (cold-blooded) or endothermic (warm-blooded). This was LONG before the Internet, and we had to pore through volumes of the (paper-bound) Science Citation Index, to identify relevant science articles. I even had to take a bus to another semi-nearby university (Yale) to find one bound reference in Their library "stacks" ! I remember the names of Robert Bakker, John Ostrom, Michael Rampino, and others of that time. I remember reading about haversian bone deposits, and comparisons of predator-to-prey ratios between Morrison Formation Dino fossils, vs modern mammals, and many other lines of evidence. ANYWAY: I have remained fascinated with how dinosaur research and discoveries (and paleontology, in general) have burgeoned and matured, in the decades that have followed.
That's awesome, I always love hearing stories from those that were around to see the transition firsthand. Must admit though, when I was doing a literature review for my undergrad dinosaur ichnology project, it occured to me many times how lucky I was to have google scholar by my side 😂
The height difference could have been solved in modern day. Most of Raptors were being dug up by Alan were US based. Deinonychus species were being considered in same vein family at the time of Velociraptor when Crichton wrote JP and screenplay. Funny enough to solve this was a fairly recent discovery, Dakotaraptor. The height and size are JP raptors. To this day I hate the fact we could have ended the debate with a name like Velociraptor Americanus. That way the undiscovered Raptor fossils Alan provided was in fact that same species in movie and universe. Sigh
@@mirkopolyak3592 Actually...no, Utahraptor was a very "fat", basal dromaesaurid that lived in the Barremian stage and it was most similar to the Middle-Eastern Cenomanian dromaesaurid, Achillobator. Dakotaraptor is a much more derived dromaeosaurid from the Maastrichtian stage (the famous Hell Creek formation) and it's literally a scaled-up Deinonychus or Dromaesaurus.
Other than temporal and geographic distribution, I have always been confused by the differences between a velociraptor and a Deinonychus. I would love a video explaining this (please)? PS subscribed on the basis of this one video. What is not to love about a channel focused on dinos?
Of course! I've been meaning to do a Velociraptor video for a while, so I'll be sure to make one for the New Year. In the meantime, the main differences are the size and the fact that Velociraptor had a much longer and thinner skull, with a slight concaveness to the nasal bone. So glad to have you on board, thank you!
I just want to say I love that you called it a kangaroo lizard when I always imagined as a kid that T-Rex was a kick boxer. I also always wondered why we assume stegosaurus and trike were vegetarian when as a kid who had turtles and birds I knew a bite whatever is put in front of it beak when I saw one.
@@TJ52359 and is still incorrect. There are very few modern animals that are purely vegetarian. Assuming the dinosaurs were based on their teeth is just plain dumb and childish. Have you ever looked inside a turtles mouth? A penguin? A parrot?
You’d think they’d behave closer to birds of prey than lizards. Bald Eagles are monogamous and come together year after year to raise young. Harris Hawks are pack hunters which allows them to hunt prey much larger than themselves.
Dienonchyus was my 2nd fav dino growing up. Grew with the original jurassic park films. Watching the films I knew they were velos were like closer to deinos than real velos. It's possible that the deinos did live and hunt in packs but they fulfilled different niches during different stages of their lives similar to the T rex. And like modern reptiles were preyed on by older larger members of their species.
That toe reminds me of crampons for ice climbing. Since it's likely they pack hunted large prey, maybe it was used in a similar manner. To stab into the prey and climb up it to bite higher on it's body and avoid being trampled.
Reminded me of a chicken really. They also grab with their claws and then pick with their beak. Having a fondness for hunting... I wonder how they would have tasted. I like chicken more than meat. The ultimate dangerous game 😅
@@nazirkazi2588 classic distinctions are 1 meat 2 poultry and 3 seafood. So, does it fly or have wings? Poultry. Does it live in the water? Seafood. Is the meat red? Meat Some make distinction for game which includes wild Turkey (not poultry) or Gator (not seafood) but also Deer (not meat). Some also group crustaceans or shellfish (lobster, crab, shrimps, even mussels etc). I know, so confusing. You should have learned this in school though. You know that, right? Alright then... Good luck in life to you ✌️
In the 80’s I loved watching Christopher Reeve’s documentary Dinosaurs!. It’s massively under appreciated. Its claymation was probably at the peak of that type of filming. It’s been a long time but I’m 95 percent sure that there was a scene with 2 Deinonychus hunting together. They were swift and deadly. And the scene is similar to the scene in Jurassic park. When the raptors outflank that one character. You clever girl. I think they did that on purpose, as a nod to that documentary. No one ever reviews that documentary. Even on a tier ranking dinosaur documentaries I saw. It was left out. Which doesn’t make sense. I’m sure it inspired a lot of kids in the 80’s to get into dinosaurs
What I think is a shame, is that deinonychus has been ignored by Jurassic park fans, in favour of velociraptors, because they sound cooler! Everything is a bloody raptor now!
*We actually have ZERO evidence of what the feathering was like on Deinonychus.* It very likely was feathered, as a few proven examples of dromaeosaurs were. But we don't know if it may have lost feathers from it's ancestral state, such as with vultures and their bald heads. All dinosaurs in general are likely to have descended from feathered ancestors, many branches of dinosaurs are known to have been scale covered, so they were all losing their feathers at different times. T. rex as a prime example, had proven feathered relatives, yet we have found areas of its skin were scale covered.
This much is true. Feathering on dromaeosaurs has been proposed mainly through phylogenetic bracketing (i.e. their relatives have that feature), having borrowed feather placement from eachother. It certainly remains possible that this is the case, like you said, T.rex showed that phylogenetic bracketing isn't ALWAYS right, but it is pretty reliable for the most part. Palaeontologists kinda take the approach of 'we might be wrong, but this is what we think is most likely until we're proven otherwise'.
Yeah exactly. But as we can clearly see, many lines of dinos were losing their feathers, and not for obvious reasons. Psittacosaurus was mostly feather free, except for the top side of its tail, for example. And it was a small dinosaur, so no issues with overheating, one would expect. Very strange.@@dino-gen
@@dino-genT. rex's phylogenetic bracketing actually works perfectly well. We've only found feathers on their distant relatives. As far as tyrannosaurids go, we've only found scales. There's also the fact that the feathers on tyrannosaurids were much simpler and less useful, being used nearly entirely for insulation. Complex feathers like on dromaeosaurs could be used to cool off, to incubate eggs, and even to assist in hunting. Essentially, for any dromaeosaur to be featherless is about as likely as a bird to be featherless. It would take some very extreme adaptations for them to lose them entirely.
Yep, I totally agree, but my point is that many lines of dinosaurs were losing feathers at different times, tyrannosaurs being fellow coelurosaurs is a prime example. So we really don't know how much feathering certain dromaeosaurs may have had or lost. *Certainly, we know three species were fully feathered:* Microraptor, Zhenyuanlong and Sinornothosaurus. @@Gabriel-bt7ix
If i remember well, they would had flapped their arms/wings in order to drag their prey against the floor and keep they inmobilized enough to kill them
Yes it has been proposed they could have used them wing assisted incline running. Another proposal was that they held them out to the side and used them to help steer (kind of like what’s happening in the thumbnail)
Wolves, lions, and hyenas frequently kill other wolves, lions, and hyenas. Packs compete with other packs, and frequently kill each other's members. Just look at chimps, or even (gasp!) humans.
The life sized diorama the old SF Academy of Sciences had of three deinonychus bursting out of a forest was compelling decades ago. Also the prey that they hunted were significantly more challenging than the wild pigs and suchlike that tigers eat. God I miss that museum, replaced as it is now with an empty building with signs to read.
With Jurrasic Park It wasn't until to following year of its release did they discovered the Utarraptor which was much bigger than Deinonychus. Since then the fossil record has just exploded with heaps of different species from the same Genious. There was something else I read the other day that not all Raptors were caravans. And they could pick and choose to eat either meat or plant material. Just like most birds today are omnivores.
(I'm assuming you meant carnivore not caravan 😂) well, to be fair, many people talk of herbivores and carnivores, but it's actually INCREDIBLY rare for an animal to be obligate plant/meat eaters. Most animals are technically omnivourous, they just specialise more for a particular food type
I am a Jurassic Park fanboy (the first movie). I believe you could say that Spielberg didn't get it "wrong". Those were not "real" dinosaurs, but clones with modified DNA, taken from frogs. I choose to believe that's why they didn't have feathers ;) They were "frogciraptors", a more reptilian and featherless version of the original creatures. I choose to believe this as my movie lore 🤪
Also, during the first movie we didn't know if they had feathers. I was a kid interested in dinos in the 90s. There was a feather theory, but it was just a theory.
The idea that flight feathers developed to act as high speed stabilizers and for speed-assist and jump assist is probably right. If you ever spend time around a lot of domestic ground birds, you see them using their wings a lot to assist with running maneuvers, jumping, etc.
I wonder if the sites of inter deinonychus aggression might be example of one deinoychus group encountering a rival group and conflict over food occurs
I took a liking to the Deinonychus from the 89' cartoon Dino Riders. They've had quite the make-over since. So much respect for modern day birds of prey.
Yeah this video has taught me two main lessons: get a better mic and stop wearing turtle-necks that scrape the mic against my neck....of course it had to happen on my most popular video 😂
When I was in the 6th grade in 1971, I got an F in science class because I wrote a report explaining my theory that theropods were more closely to birds than to reptiles. I actually compared archaeopteryx to dromaeosaurs and and the title of my report was "T-Rex was a big chicken".
@dino-gen : LOL: I spent 30 minutes arguing with the teacher and she changed my grade from an F to D-. The assignment was find a theory and present arguments to back up your theory and I had actual facts to back me up. I also pointed out that no modern reptile comes anywhere close to the body shape of theropods while birds have the closest body shape of any other living animal. Another argument I made was dinosaurs were the most dominant land animal on the planet and it doesn't make sense that they were the only one not surviving the extinction event. Funny thing is, my teacher told me "no scientist believe dinosaurs were the ancestors of birds and warm blooded". I shot back with "that may be true now but 20 years from now, the theory that theropods were reptiles will be seen as archaic and silly when they were obviously birds". I now really wished I pursued the path to become a paleontologist cause I have thought about other theories such as the lumbering giant plant eaters were a whole separate class of animals from theropods.
Heard of these fellas before on that fact about the raptors in jurassic park taking after their likeness somewhat. I didnt know much at all about them though. Happy to learn more about these fellas! Whats a dino youve been curious about lately?
Glad you’ve learned something new and enjoyed it 😃 oooo well one group I’ve had some interest in recently are giant ornithopods from the early Cretaceous of the UK, but I don’t want to jinx/spoil anything just yet 😬
@dino-gen heheheh. Thank you amigo. I look forward to the coming dino content 😎 ive still been thinking about different ways that fertile belt has effected the US. I think it also made a huge impact on our tobacco industry here as well. Keep up the excellent work!
Actually, Crichton admitted that he used the deinonychus and Ostrum's research for his velocaraptors! He considered the name more exciting. He even used the species name anteropus (spelling) instead of mongoliensis.
One of the best ways to identify whether an animal had a complex social structure or not is whether it was taking care of its young. The way to tell whether an animal took care of its young or not is via isotopic analysis. If the diet was similar, then the young fed together with their parents. If the diet was different, the young fed separately. Think of this how crocodiles tolerate their hatchlings and protect them, but don’t actively hunt and provide for them. And, surprise surprise, Deinonychus young did not share the same diet as adults: “D. antirrhopus showed this same pattern in tooth samples collected from both rock units, with small teeth being the more enriched in 13C (mean = −8.99‰; n = 10) and the large teeth being more depleted in 13C (mean = −10.38‰; n = 10). These differences suggest that juvenile and adult D. antirrhopus from both formations likely consumed different prey. Hypothetical food sources, such as T. tilletti, are close to the 13C isotopic signal of adult D. antirrhopus, consistent with the hypothesized trophic relationship (predator-prey) between these two species. Juvenile D. antirrhopus had a diet more enriched in 13C, likely composed of smaller-bodied, but trophically-higher species. Taken together, these data add to the growing evidence that D. antirrhopus was not a complex social hunter by modern mammalian standards.” -Ontogenetic dietary shifts in Deinonychus antirrhopus (Theropoda; Dromaeosauridae): Insights into the ecology and social behavior of raptorial dinosaurs through stable isotope analysis (Frederickson et al., 2020). So it’s more likely than not deinonychus did not hunt in packs and wasn’t social.
The Deinonychus is literally the og raptor. I collected those Dino-Magazines from the 80s. One issue always featured one particular dinosaur. And one featured the deinonychus in great detail. It was maybe the first name I could spell out just after learning how to write in school back in the day. Then Jurassic Park came out and I watched it... and they showed the claw and I was just in awe that they would bring up my beloved dinosaur... and it was a velocir raptor... whos claw is impressive, but nothing like the og. Deinonychus literally translates to 'cruel claw'... raptors have always been just the cheap version of holliwood...
John Ostrom and son deserve credit in the field of science, but nobody can take away the beautiful artwork of one Charles R. Knight American artist (1874-1953)! Subscribed.
Deinonychus has the tail for counterbalance while flicking it from side to side when it comes to speed and agility. The large brain and eyes of Deinonychus looks at the world through night vision goggles. Deinonychus is also a pack hunter. Deinonychus had lots of sharp teeth and claws on their hands and feet that were the signature killing tools for their hunting strategy. Their hunting strategy is to hunt and kill opponents such as Sauroposeidon and Tenontosaurus had to rely on their sheer size and strength. Deinonychus encountered with stealth, speed, agility, numbers, and one more advantage called night vision.
Inevitably, when dealing with the subject of prehistoric life in general, a good deal of educated guesswork is involved. To my way of thinking, almost certainly: some dinosaurs were warm-blooded and others were not; some had feathers and others didn't; and some were brightly coloured wile others were more drab, much like the animals that are around today.
3k subs but this content is top tier, keep putting out short concise level headed educational content like this and i can see you living off of youtube income in a year or 2, educate me about all things dinosaur, subbed a suggestion to improve your content, when you say words that no layman has ever heard like Dromaeosaur (i had to google it) put the word on screen, good stuff, keep going
The change of the views on dinosaurs is also a good study on the way science is prone to factions that beleive one thing or the other and fight each other over who is right(warm blooded vs cold blooded for example). But that is how things are learned. It becomes toxic when politics, money and influence are used to not further science but to keep one school of thought in power to the detriment of knowledge.
On a random tangent concerning packs... If I ever decide to write [and hopefully publish] a story concerning dinosaurs, Deinonychus is likely to be on that list. And would likely be written as hunting in packs. Except I don't think I wanna call them packs. After nearly a year of feeding the crows that live near my home, maybe a "murder" or "unkindness" is more appropriate 🦖
Lets be honest, i really like your videos and have now watched a very large number and have learnt many interesting facts .. .. .. However, I find your sheer cuteness and handsome good looks very distracting. Making it hard to focus on the video content while watching your handsome face. Looking back through you video Catalog i can see you maturing and growing and believe you are growing into a very handsome man. Please keep up the good work as I love listening to you while watching you. And your droll humour is like icing on a cake... Keep growing handsomer and you will remain super popular with everybody.
Movie reference correction - the 'Velociraptors' in the movies are based off of the UtahRaptor, which just happens to be what Dr Allan Grant was excavating when his character is introduced.
I remember when I first heard about deinonychus. I thought coming upon one would have been a nightmare, this was well before Jurassic Park. I remember me and my kids obsessing over it, and then I saw a CGI one in of all things, the Super Mario Brothers movie. It was tied to a post and there was compassion for it. I wondered why no one made a decent movie with something like that. Ha, got my wish.
I've written a comment under another video about what I'm going to say here. So this might seem like déja vu. I was born in 1962. I've been into dinosaurs since I was three ("The Meat Eating Dinosaur" was a children's book I quoted. Constantly.). So I lived through this transition. I never heard about Ostram until much later on, because back then the general public did not have the kind of information access we have now. This meant that what you had were books in your library and magazines, and up until the 80s, those were dominated by more conservative paleontologists, who resisted the idea of dino endothermy and "birds = dinosaurs". As I had mentioned, Robert Bakker was a popular proponent of the new perspective, and he got a lot of grief for it, which he wrote about at length un his books. He called it the "harrumph/I knew it" dicotomy; establishment paleontologists would "harrumph" new research supporting the new perspective on dinosaurs, and anything which seemed to contradict it was pounced on with "I KNEW IT!* So these notions did not catch on quickly at all. It took a great deal of painstaking work and many, many, many papers, not to mention some strategic deaths (yes, unfortunately certain philosophers of science are right, sometimes scientific theories change only when certain well placed scientists die). In fact, I clearly remember Bakker in one of his popular books talking about his "completely wild theory" where he created a large supergroup called "Dinosauria" which included birds as a subgroup. When he was writing (sometime in the 70s) that was considered to be UTTERLY outrageous. Bananas. Mad. It was pre "dinosaurs have furcula", so it was perceived as completely unsupported, Archaeopteryx notwithstanding. I say all this to point out that everything you talk about so beautifully and clearly has been realized only through a lot of intellectual blood, sweat, and tears. People, including scientists, don't relinquish their preconceptions easily, and certainly not without a fight, and those are often acrimonious. "Dinosaurs" were synonymous with "maladaptive, outmoded, passé, extinct". I myself am "a dinosaur" in many ways, metaphorically. Those preconceptions affected perceptions, both in the general population, and in scientists as well, who are above all else, human.
I find it unlikely that one dinosaur fed on another dinosaur just because they lived within a few million years of each without direct evidence. Lions and kangaroos live at the same point in time, yet lions don't hunt kangaroos.
Evolutionary speaking, T-Rex beame the Kangaroo. The similarities are undeniable. Long tail for balance, short upper arms, and those great hind legs that with a few Evolutionary adjustments, we have a vegetarian version of T-Rex!
Interesting video. Thanks! Please work on your audio. I had to max my volume to adequately hear you and with your low voice it was sometimes a strain to clearly hear what you said.
He's awesome, Man not to mention he's handsome as hell ,and looks like Eroll Flynn's Son, with his handsome 1940's-ish good looks and appearance!! Great voice, too. easy going ,unique. thanks and say hello to Jimi Hendrix if a see him in London, Mate. thanks a Southern "Yank" @
When you find out how the fossil hunters back in the day used to just make shit up constantly and just stick bones together from different species and present it as a dinosaur it makes sense that they are figuring out they were wrong about everything
Could they be also warm-blooded? That could make them into some entirely new kind of animals: flightless feathered reptiles, barely distinguishable from the birds we all are used to.
Dinosaurs were certainly warm blooded, as their anatomy is not compatible with sluggish cold-blooded animals, birds are classified as a type of dinosaur, they are Avialid Theropods, even with warm-blood and feathers, dinosaurs and pterosaurs are still classified as reptiles, as one cannot outgrow your classification in cladistics.
nice video. i was born in 1964, as a child i wanted to become a paleontologist. I remember the "warm blooded dinosaur" being a new thing when I was growing up. I love the information we have now, it's much different than what i grew up with. A pack of ground running hawks, with serrated teeth and 10 inch claws? Terrifying LOL
That's awesome that you saw it firsthand! Must have been a very controversial time given how much it's changed the image of dinosaurs! Also I'm glad you appreciate that it would STILL mean they're terrifying lol 😅
@@dino-gen feathers were once a radical idea as well, Archaeopteryx changed that ;) Yeah, feathers and a close relation to extant raptors, terrifying stuff. Dromaeosaurs are awesome sauce.
They most certainly are! Also, nosy neighbour time: Have you heard back about your metal orb yet? The geologist in me curious 🤓
@@dino-gen not yet, but have been reaching out. It's weird :) maybe it's something unusual, maybe not. Schrödinger's ball :)
"A pack of ground running hawks", each hawk weighting 100 kilograms.
the closest comparison to aves we can get it's Kelenken (terror bird), although unfortunatelly they also went extinct long ago. (or fortunatelly lol)
I never forgot about Archaeopteryx (hope I spelled it right).
Have this old Dinosaur World Atlas from the 90s, where all of them are shown with scales and some dragging their tail. Except for this proto-bird, it was drawn with feathers.
Bit inconsistent, outdated but I read through it like 20 times or more. :)
I like to imagine that their claw was to climb thoses giant trees they had back then, and fall on their prey. That would evolve them feathers over time to help control their descent, and then get ability to fly when the body size reduce
I was thinking the same thing about dropping from trees. I remember a video showing how birds will use their wings to help them climb trees. I think they uses domestic chickens for the demonstration. This was from back when they were trying to decide if dinosaurs had feathers.
@@westvirginian3102 "As god is my witness, I thought turkeys could fly!"
@@DonMeaker I know that reference😀
I'm always reminded of the Mayan deity Quetzalcoatl: "Feathered serpent" in English. Thanks for the vid, Deinonychus is one of my favorite dinos!
I love learning about dinosaurs from a guy who looks and sounds like a 1910's RAF pilot.
👨🏻✈️
Not enough leather.
Are you a yank? 😂 that’s a normal brittish accent without a hint of psh about it my good man 🤣👍🤝
A little RP would have been brill!
The RAF wasn't founded till April 1st 1918,,,,just saying,,,,
my great great grandmother was taken by a pack deion’s and it’s good to see science is finally getting it right
Great job on this. I too was an 8 year-old telling adults I would be a Paleontologist. My favorite will always be the Triceratops. I had the pleasure of visiting an awesome Dinosaur museum in Montana with a display of about 15 Triceratops heads from youth to adult. Looking forward to more content, as I sit in my Dino PJ's at age 67.
Oh man, I think I went to that same museum last year! I don’t remember what it was called but I do remember it also had a gigantic case full of t-rex skulls. It was pretty awesome.
The idea Deinonychus couldn’t hunt in packs because it wasn’t a mammal, fought among its own species and didn’t live in family groups has some major issues-all these arguments are based on OUTDATED ideas about modern animal behaviour, and plenty of extant cooperative predators break one or more of these rules.
Agreed. Dinosaurs were slapped with 'reptilian traits' that we've since found that even modern reptiles don't really exhibit
the whole individualistic instead of social thing that they pushed onto everything the past has given us so much trouble in so many ways in our civilization. its not surprising that this bias bled into science.
Saying Deinonychus couldn’t hunt in packs because it “wasn’t a mammal” is liking saying cavemen couldn’t start fires because it was hot.
It makes no sense, lol.
@@paleospino4956
It’s based on the idea pack hunting is supposedly a mammalian trait, which ignores that a) pack hunting (by this I mean genuinely cooperative hunting, so excluding prey mobbing but including cooperation outside of animals living in family groups) in non-mammals is far more common than often assumed, and b) pack hunting is the minority in mammals.
@@bkjeong4302 Yes exactly. It’s an incredibly outdated,
I really like Deinonychus,
Recently he's been overshadowed by Utah and Maip because the bigger=better mentality.
But I'll always appreciate him as the kickstarter to a new generation!
Utahraptor is actually a more basal, chunky dromaeosaurid, just like the Middle-Eastern, Achillobator. It lived quite a few million years before Deinonychus. The actual dromaeosaurid that best resembled an "oversized Deinonychus" was Dakotaraptor, which could well be its dirrect descendent.
Deinonychus is hands down, my all time favorite dinosaur since I was about 5. Love the video and loved learning a bit more about my beloved dino. :)
I had a Dinosaur book by Dougal Dixon, one of the good ones that smell like knowledge and science. It featured the most outdated - at that time - illustration of Deinonychus antirrhopus you can imagine and a smaller one that hinted it may have had feathers. Now we know it likely did and so much more but everytime I hear the word - or watch JP with its obvious Non-Raptors - I smell that page again in my head😅
I’m so happy for. Do you also have a favorite kind of bowel movement?
@@georgeburns7251 I'm not who you meant but ... sure, everyone does ?!
Firm, dry, quick. That's the ideal bowel movement, right? for your rude comment I wish you the exact opposite for a full week ;)
@@georgeburns7251 Only the ones in which I get to flush lil shits like yourself down the toilet. :D
@@georgeburns7251better out than in yknow. do you not poop?
Fantastic quality summary of a paradigmatic creature, its emergence as a springboard by a pivotal scholar in the field, all toward a fuller, richer landscape for the Mesozoic generally. Please give us more!
Glad you enjoyed it! I most certainly will 😁
Great video! Very well presented, informative, down-to-earth! Great stuff! Only one thing I would point out, the Komodo dragon part shows an Asian water monitor (Varanus salvator). It is hard to distinguish their difference for people that never worked or studied them V. salvator is much less bulky, dark top, yellowish underside, square head, and purple tongue. V. komodoensis is extremely bulky, usually unison colouration of grey, massive bulky head and jaws, and a yellow tongue. Neverthless, liked and subscribed and looking for more content!
Thank you, glad you enjoyed it! Also always enjoy learning something new in the comments 🤓😊
Thank you! To be honest, I do appreaciate down to earth, straight to the point, honest educational videos! Especially, when the majority so-called educational videos on UA-cam are way over the top, awfully ostentatious, misleading info and wannabe funny, often coming from America. Science should be treated with dignity and top research!
And that is why I am always happy to find someone like you on UA-cam! Well Done!
To be fair, Jurassic Park came out before it was realized that some dinosaurs had feathers. Aside from a few liberties taken for entertainment purposes the movie tried to represent the most current scientific views of the time.
Issue; they then completely rejected any new views on dinosaurs, and especially feathers on dinosaurs
its more like the cgi technology at that time still can't keep up for depicting dino with feathers. Because in 1980s there are already discoveries about dinosaur with feathers.
@@kotarojujo2737 Those who stated the feathered Dino theory then were laughed at until they found the archeopterx fossil complete with its unambiguous plumage
Deinonychus probably was on the higher end of the scale when it comes to dinosaur intelligence but they almost certainly weren't as clever as the Jurassic Park raptors.
Lions hunt in packs too - but aren't as clever as orcas, or chimps. They were not stupid but setting traps and opening doors probably wouldn't be realistic.
No most certainly not. But, then again, there are many types of intelligence. Crows and pigeons are most definitely not as smart as us, but have a much better memory than us.
I’d be very interested to know what types of intelligence a dromaeosaur like Deinonychus had 🤓
@@dino-gen absolutely. It wasn't meant as a put down or to imply "dumb dinosaurs". Parrots and Corvids are pretty damn smart so there's definitely intelligent dinosaurs out there.
Open doors doesn't require much intelligence, a common household cat can open doors, and cats are not anywhere near as intelligent as some birds are. If they reach dog-level intelligence then trap setting and opening doors is well in realm of possibility. African wild dogs set traps and hunt in coordination that is just astonishing to watch.
Please see: my cat whenever I'm sat on the toilet...
@@3characterhandlerequiredYeah. People seem to overestimate the level of intelligence required to problem solve and strategize.
It's beneficial to any animal to be able to figure out how mechanisms work or how to trick others into falling for schemes. Individually, members of a species usually can't all do it but most are intelligent enough that they as a species can. As in, not every cat can figure out how to open a door, but cats as a species definitely can and do sometimes.
Any animal of a similar intelligence to a cat will probably be able to figure it out too, potentially even on accident.
This boy is my absolute favourite dinosaur. I love them, I want one as a pet.
I don't think they were ever misunderstood! It's just too much that is unknown about all dinosaurs, & it's learn as you go! Just don't stop learning more about them, otherwise they'll surprise us all again!! With something ever greater!!
The movie monsters were based on Utah Raptor, which is a close dynonochus relative.
Watch a roadrunner hunt. I think it is as close as any living creature gets to how some of these creatures moved and behaved but on a different scale with a slightly different architecture.
Meep Meep!!
This raptor and Parasaurolophus were my faves growing up. Like until 10, I struggled with school, unless it was dinosaur related. Used to spend hours drawing Deinonychus.
You should see Tenontosaurus in the Isle game. They made it a superb model. And it uses its tail along with kicks for offensive attacks.
I've hunted Tenontosaurus as a Carnotaurus though aha. Troodons and Utah raptors are in the game also. Though for some reason the Utah is now called Omni raptor.
Though, you'll see no feathers on them. But is a great game to play and check out if you are interesting in dinosaurus. It is remarkably realistic in many ways, just as it is unrealistic in many other ways,
Whoa, great channel. As someone who has been casually into dinosaurs my whole life, this breakdown added so much nuance I had no idea about. Thank you, ez sub!
While a (1980-ish) university undergrad, in a bio-psychology course (Evolution of Social Behavior), we compared the brain development from Lamprey on along phylogeny to Primates.
I was (semi-oddly) assigned the term paper topic of whether Dinosaurs were ectothermic (cold-blooded) or endothermic (warm-blooded). This was LONG before the Internet, and we had to pore through volumes of the (paper-bound) Science Citation Index, to identify relevant science articles. I even had to take a bus to another semi-nearby university (Yale) to find one bound reference in Their library "stacks" !
I remember the names of Robert Bakker, John Ostrom, Michael Rampino, and others of that time. I remember reading about haversian bone deposits, and comparisons of predator-to-prey ratios between Morrison Formation Dino fossils, vs modern mammals, and many other lines of evidence.
ANYWAY: I have remained fascinated with how dinosaur research and discoveries (and paleontology, in general) have burgeoned and matured, in the decades that have followed.
That's awesome, I always love hearing stories from those that were around to see the transition firsthand. Must admit though, when I was doing a literature review for my undergrad dinosaur ichnology project, it occured to me many times how lucky I was to have google scholar by my side 😂
The height difference could have been solved in modern day. Most of Raptors were being dug up by Alan were US based. Deinonychus species were being considered in same vein family at the time of Velociraptor when Crichton wrote JP and screenplay. Funny enough to solve this was a fairly recent discovery, Dakotaraptor. The height and size are JP raptors. To this day I hate the fact we could have ended the debate with a name like Velociraptor Americanus. That way the undiscovered Raptor fossils Alan provided was in fact that same species in movie and universe. Sigh
Funnily enough, I have a video on just such an animal coming tonight....😃
Also the books I was reading as a kid in the 5 years or so before the movie put Dinonychus antirrhopus at about the size it was shown in the movie.
Utahraptors are very similar in size to Dakotaraptors, and were discovered while Jurassic Park was in production.
@@mirkopolyak3592 Actually...no, Utahraptor was a very "fat", basal dromaesaurid that lived in the Barremian stage and it was most similar to the Middle-Eastern Cenomanian dromaesaurid, Achillobator. Dakotaraptor is a much more derived dromaeosaurid from the Maastrichtian stage (the famous Hell Creek formation) and it's literally a scaled-up Deinonychus or Dromaesaurus.
@madsgrams2069 Also, living alongside T-rex may have made the possibility of a big raptor versus T-rex fighting in the past.
Other than temporal and geographic distribution, I have always been confused by the differences between a velociraptor and a Deinonychus. I would love a video explaining this (please)? PS subscribed on the basis of this one video. What is not to love about a channel focused on dinos?
Of course! I've been meaning to do a Velociraptor video for a while, so I'll be sure to make one for the New Year. In the meantime, the main differences are the size and the fact that Velociraptor had a much longer and thinner skull, with a slight concaveness to the nasal bone.
So glad to have you on board, thank you!
I just want to say I love that you called it a kangaroo lizard when I always imagined as a kid that T-Rex was a kick boxer.
I also always wondered why we assume stegosaurus and trike were vegetarian when as a kid who had turtles and birds I knew a bite whatever is put in front of it beak when I saw one.
Herbivore/Carnivore/Omnivore assumption/distinction is almost 100% based on teeth
@@TJ52359 and is still incorrect.
There are very few modern animals that are purely vegetarian. Assuming the dinosaurs were based on their teeth is just plain dumb and childish.
Have you ever looked inside a turtles mouth? A penguin? A parrot?
@@Loreweavver humans: this animal eat plants, this eats meat, this one eats both
nature: food is food
@@veronikamajerova4564 Correct. Bambi would eat Thumper if hungry enough.
You’d think they’d behave closer to birds of prey than lizards. Bald Eagles are monogamous and come together year after year to raise young. Harris Hawks are pack hunters which allows them to hunt prey much larger than themselves.
"It's like they did it on purpose". I feel the same and have felt this since JP1. Finally someone else.
3:02 ‘it’s like they did it on purpose’ 😂 really interesting video, thanks!
Thank YOU for watching! Glad you enjoyed it 🙂
Dienonchyus was my 2nd fav dino growing up. Grew with the original jurassic park films. Watching the films I knew they were velos were like closer to deinos than real velos. It's possible that the deinos did live and hunt in packs but they fulfilled different niches during different stages of their lives similar to the T rex. And like modern reptiles were preyed on by older larger members of their species.
I’m so happy for you. Ha ha, what a fool
@@georgeburns7251 Haters gonna hate.🤣
Very well done and fascinating... and you made me smile. Congrats
Glad you enjoyed it! 😃
That toe reminds me of crampons for ice climbing. Since it's likely they pack hunted large prey, maybe it was used in a similar manner. To stab into the prey and climb up it to bite higher on it's body and avoid being trampled.
Reminded me of a chicken really. They also grab with their claws and then pick with their beak.
Having a fondness for hunting... I wonder how they would have tasted. I like chicken more than meat. The ultimate dangerous game 😅
@@mysterioanonymous3206You like chicken more than... meat?
@@nazirkazi2588 definitely... (poultry isn't meat if that's what you mean, and neither is fish)...
@@mysterioanonymous3206 What is frog, gator and lobster?
@@nazirkazi2588 classic distinctions are 1 meat 2 poultry and 3 seafood.
So, does it fly or have wings? Poultry. Does it live in the water? Seafood. Is the meat red? Meat
Some make distinction for game which includes wild Turkey (not poultry) or Gator (not seafood) but also Deer (not meat).
Some also group crustaceans or shellfish (lobster, crab, shrimps, even mussels etc).
I know, so confusing. You should have learned this in school though. You know that, right?
Alright then... Good luck in life to you ✌️
In the 80’s I loved watching Christopher Reeve’s documentary Dinosaurs!. It’s massively under appreciated.
Its claymation was probably at the peak of that type of filming.
It’s been a long time but I’m 95 percent sure that there was a scene with 2 Deinonychus hunting together. They were swift and deadly. And the scene is similar to the scene in Jurassic park. When the raptors outflank that one character. You clever girl. I think they did that on purpose, as a nod to that documentary.
No one ever reviews that documentary. Even on a tier ranking dinosaur documentaries I saw. It was left out. Which doesn’t make sense. I’m sure it inspired a lot of kids in the 80’s to get into dinosaurs
Can’t I’ve actually seen it but I’m glad you mentioned it, will have to hunt it down 🤓
@@dino-genI saw it in UA-cam once, dinosaurs! Christopher Reeve
What I think is a shame, is that deinonychus has been ignored by Jurassic park fans, in favour of velociraptors, because they sound cooler! Everything is a bloody raptor now!
*We actually have ZERO evidence of what the feathering was like on Deinonychus.* It very likely was feathered, as a few proven examples of dromaeosaurs were. But we don't know if it may have lost feathers from it's ancestral state, such as with vultures and their bald heads. All dinosaurs in general are likely to have descended from feathered ancestors, many branches of dinosaurs are known to have been scale covered, so they were all losing their feathers at different times. T. rex as a prime example, had proven feathered relatives, yet we have found areas of its skin were scale covered.
This much is true. Feathering on dromaeosaurs has been proposed mainly through phylogenetic bracketing (i.e. their relatives have that feature), having borrowed feather placement from eachother. It certainly remains possible that this is the case, like you said, T.rex showed that phylogenetic bracketing isn't ALWAYS right, but it is pretty reliable for the most part.
Palaeontologists kinda take the approach of 'we might be wrong, but this is what we think is most likely until we're proven otherwise'.
Yeah exactly. But as we can clearly see, many lines of dinos were losing their feathers, and not for obvious reasons. Psittacosaurus was mostly feather free, except for the top side of its tail, for example. And it was a small dinosaur, so no issues with overheating, one would expect. Very strange.@@dino-gen
@@dino-genT. rex's phylogenetic bracketing actually works perfectly well. We've only found feathers on their distant relatives. As far as tyrannosaurids go, we've only found scales.
There's also the fact that the feathers on tyrannosaurids were much simpler and less useful, being used nearly entirely for insulation. Complex feathers like on dromaeosaurs could be used to cool off, to incubate eggs, and even to assist in hunting.
Essentially, for any dromaeosaur to be featherless is about as likely as a bird to be featherless. It would take some very extreme adaptations for them to lose them entirely.
There's 0 evidence of scales on Dromaeosaurs 🤷
Yep, I totally agree, but my point is that many lines of dinosaurs were losing feathers at different times, tyrannosaurs being fellow coelurosaurs is a prime example. So we really don't know how much feathering certain dromaeosaurs may have had or lost. *Certainly, we know three species were fully feathered:* Microraptor, Zhenyuanlong and Sinornothosaurus. @@Gabriel-bt7ix
I wonder if Deinonychus used its wings like chickens do flapping to help gain more speed running across the ground?
If i remember well, they would had flapped their arms/wings in order to drag their prey against the floor and keep they inmobilized enough to kill them
My apologies for my bad english
Birds incapable of actual flight have been observed using their wings to run quickly up steep inclines and even trees.
Yes it has been proposed they could have used them wing assisted incline running. Another proposal was that they held them out to the side and used them to help steer (kind of like what’s happening in the thumbnail)
Clear and pragmatique point of view with a master diction Bravo👏👏🇲🇫
Merci! 😃
Wolves, lions, and hyenas frequently kill other wolves, lions, and hyenas. Packs compete with other packs, and frequently kill each other's members. Just look at chimps, or even (gasp!) humans.
Very nice channel and reporting. I don’t think I’d seen your work before, which is very surprising to me.
The life sized diorama the old SF Academy of Sciences had of three deinonychus bursting out of a forest was compelling decades ago. Also the prey that they hunted were significantly more challenging than the wild pigs and suchlike that tigers eat.
God I miss that museum, replaced as it is now with an empty building with signs to read.
With Jurrasic Park It wasn't until to following year of its release did they discovered the Utarraptor which was much bigger than Deinonychus. Since then the fossil record has just exploded with heaps of different species from the same Genious. There was something else I read the other day that not all Raptors were caravans. And they could pick and choose to eat either meat or plant material. Just like most birds today are omnivores.
(I'm assuming you meant carnivore not caravan 😂) well, to be fair, many people talk of herbivores and carnivores, but it's actually INCREDIBLY rare for an animal to be obligate plant/meat eaters. Most animals are technically omnivourous, they just specialise more for a particular food type
Ohh, a whole video devoted to my favourite dinosaur :)
I am a Jurassic Park fanboy (the first movie). I believe you could say that Spielberg didn't get it "wrong". Those were not "real" dinosaurs, but clones with modified DNA, taken from frogs. I choose to believe that's why they didn't have feathers ;) They were "frogciraptors", a more reptilian and featherless version of the original creatures. I choose to believe this as my movie lore 🤪
I mean, just imagine if 65 millon years in the future "someone" cloned humans using DNA from frogs. We may look quite different than real humans.
One of the only things I liked about Jurassic World was Henry Wu stating that DNA tampering changed the appearance of ALL their dinosaurs.
Frogs are amphibians.
Yeah that’s why I’m always very forgoving of the Jurassic Park films, they often state these are not REAL dinosaurs
Also, during the first movie we didn't know if they had feathers. I was a kid interested in dinos in the 90s. There was a feather theory, but it was just a theory.
The idea that flight feathers developed to act as high speed stabilizers and for speed-assist and jump assist is probably right. If you ever spend time around a lot of domestic ground birds, you see them using their wings a lot to assist with running maneuvers, jumping, etc.
I wonder if the sites of inter deinonychus aggression might be example of one deinoychus group encountering a rival group and conflict over food occurs
You know, I didn't even think of that! this is why the comment section is my favourite part of videos! 🤓
Good thinking...I live in rural France and competition between crows and magpies around where I live is intense, both have the same food sources
I took a liking to the Deinonychus from the 89' cartoon Dino Riders. They've had quite the make-over since. So much respect for modern day birds of prey.
Great video man - get those microphone volumes up a bit more, you're maxed out on my PC and i can hardly hear ya
Yeah, sorting out audio balances is now my main priority lol
Excellent video, but please invest in a better mic. Your channel deserves it!! Cheers!!
Yeah this video has taught me two main lessons: get a better mic and stop wearing turtle-necks that scrape the mic against my neck....of course it had to happen on my most popular video 😂
When I was in the 6th grade in 1971, I got an F in science class because I wrote a report explaining my theory that theropods were more closely to birds than to reptiles. I actually compared archaeopteryx to dromaeosaurs and and the title of my report was "T-Rex was a big chicken".
My man I would have given A+++
@dino-gen : LOL: I spent 30 minutes arguing with the teacher and she changed my grade from an F to D-. The assignment was find a theory and present arguments to back up your theory and I had actual facts to back me up. I also pointed out that no modern reptile comes anywhere close to the body shape of theropods while birds have the closest body shape of any other living animal. Another argument I made was dinosaurs were the most dominant land animal on the planet and it doesn't make sense that they were the only one not surviving the extinction event.
Funny thing is, my teacher told me "no scientist believe dinosaurs were the ancestors of birds and warm blooded". I shot back with "that may be true now but 20 years from now, the theory that theropods were reptiles will be seen as archaic and silly when they were obviously birds". I now really wished I pursued the path to become a paleontologist cause I have thought about other theories such as the lumbering giant plant eaters were a whole separate class of animals from theropods.
Well, I hope she remembered that experience when it became widely accepted and felt very silly lol
Hey, guys, Thoughty2 here😅
Heard of these fellas before on that fact about the raptors in jurassic park taking after their likeness somewhat. I didnt know much at all about them though. Happy to learn more about these fellas! Whats a dino youve been curious about lately?
Glad you’ve learned something new and enjoyed it 😃 oooo well one group I’ve had some interest in recently are giant ornithopods from the early Cretaceous of the UK, but I don’t want to jinx/spoil anything just yet 😬
@dino-gen heheheh. Thank you amigo. I look forward to the coming dino content 😎 ive still been thinking about different ways that fertile belt has effected the US. I think it also made a huge impact on our tobacco industry here as well. Keep up the excellent work!
Actually, Crichton admitted that he used the deinonychus and Ostrum's research for his velocaraptors! He considered the name more exciting. He even used the species name anteropus (spelling) instead of mongoliensis.
I followed just by the name of your channel 👌🏽
Laura Derns face was perfect!!!
Goodbye, upright posture! Don’t let the door hit you on the way out.
One of the best ways to identify whether an animal had a complex social structure or not is whether it was taking care of its young. The way to tell whether an animal took care of its young or not is via isotopic analysis. If the diet was similar, then the young fed together with their parents. If the diet was different, the young fed separately. Think of this how crocodiles tolerate their hatchlings and protect them, but don’t actively hunt and provide for them.
And, surprise surprise, Deinonychus young did not share the same diet as adults:
“D. antirrhopus showed this same pattern in tooth samples collected from both rock units, with small teeth being the more enriched in 13C (mean = −8.99‰; n = 10) and the large teeth being more depleted in 13C (mean = −10.38‰; n = 10). These differences suggest that juvenile and adult D. antirrhopus from both formations likely consumed different prey. Hypothetical food sources, such as T. tilletti, are close to the 13C isotopic signal of adult D. antirrhopus, consistent with the hypothesized trophic relationship (predator-prey) between these two species. Juvenile D. antirrhopus had a diet more enriched in 13C, likely composed of smaller-bodied, but trophically-higher species. Taken together, these data add to the growing evidence that D. antirrhopus was not a complex social hunter by modern mammalian standards.”
-Ontogenetic dietary shifts in Deinonychus antirrhopus (Theropoda; Dromaeosauridae): Insights into the ecology and social behavior of raptorial dinosaurs through stable isotope analysis (Frederickson et al., 2020).
So it’s more likely than not deinonychus did not hunt in packs and wasn’t social.
Sweet mustache
Thanks! 👨🏻
Nice ‘stache!
Well done, subscribed.
Awesome, thank you!
The Deinonychus is literally the og raptor. I collected those Dino-Magazines from the 80s. One issue always featured one particular dinosaur. And one featured the deinonychus in great detail. It was maybe the first name I could spell out just after learning how to write in school back in the day. Then Jurassic Park came out and I watched it... and they showed the claw and I was just in awe that they would bring up my beloved dinosaur... and it was a velocir raptor... whos claw is impressive, but nothing like the og.
Deinonychus literally translates to 'cruel claw'... raptors have always been just the cheap version of holliwood...
John Ostrom and son deserve credit in the field of science, but nobody can take away the beautiful artwork of one Charles R. Knight
American artist (1874-1953)! Subscribed.
Agreed! Also it’s awesome to have you on board, thank you 😃
Thanks for a great video!
Glad you liked it!
I love the information, but I also love your face.
I’m nothing if not a provider 😂
Deinonychus has the tail for counterbalance while flicking it from side to side when it comes to speed and agility. The large brain and eyes of Deinonychus looks at the world through night vision goggles. Deinonychus is also a pack hunter. Deinonychus had lots of sharp teeth and claws on their hands and feet that were the signature killing tools for their hunting strategy. Their hunting strategy is to hunt and kill opponents such as Sauroposeidon and Tenontosaurus had to rely on their sheer size and strength. Deinonychus encountered with stealth, speed, agility, numbers, and one more advantage called night vision.
thx for info ,subbed
Awesome, thank you!
Inevitably, when dealing with the subject of prehistoric life in general, a good deal of educated guesswork is involved. To my way of thinking, almost certainly: some dinosaurs were warm-blooded and others were not; some had feathers and others didn't; and some were brightly coloured wile others were more drab, much like the animals that are around today.
Interesting. Thanks.
Glad you enjoyed it 😊
3k subs but this content is top tier, keep putting out short concise level headed educational content like this and i can see you living off of youtube income in a year or 2, educate me about all things dinosaur, subbed
a suggestion to improve your content, when you say words that no layman has ever heard like Dromaeosaur (i had to google it) put the word on screen, good stuff, keep going
Thank you so much! Glad you're enjoying the content and I really appreciate the feedback, will do 🙂
Also, this was a great vid.
Thanks, glad you enjoyed it 🙂
thank you for sharing, cosmic light blessings.
The change of the views on dinosaurs is also a good study on the way science is prone to factions that beleive one thing or the other and fight each other over who is right(warm blooded vs cold blooded for example). But that is how things are learned. It becomes toxic when politics, money and influence are used to not further science but to keep one school of thought in power to the detriment of knowledge.
I had an ad with Jeff Goldblum in it right before this video 😄
Excellent 😂
On a random tangent concerning packs...
If I ever decide to write [and hopefully publish] a story concerning dinosaurs, Deinonychus is likely to be on that list. And would likely be written as hunting in packs.
Except I don't think I wanna call them packs. After nearly a year of feeding the crows that live near my home, maybe a "murder" or "unkindness" is more appropriate 🦖
I’m loving that idea! Also please let me know when you do, I’d love to read it!
Using 'murder' is metal af. Good choice homie.
cool
Deinonychus has been my favorite ever since I was a kid.
of course, now that they are coming up they’re everyone’s favorite since a kid….
@@chauncieextreme8514 I grew up watching the Dinosaur! special hosted by Chris Reeve back in the '80s, this isn't a new fad for me.
"Stay classy San Diego"
😂
Cool story bro
Very well done video and fascinating content, cheers!
But I have a question: you are a handsome man so... why the moustache? 🙀
Movember baby! 😂 don’t worry it’s now gone for another year haha thank you, glad you enjoyed the content 😊
Really interesting! Just wish the narrator had slightly better presentation cadence and stopped doing the big looks away from the camera
Yeah I don’t know why I keep doing that! Trying to nip it in the bud 😂 glad you enjoyed it though!
@@dino-gen I’ll defo keep watching though! I think you’re easy smart enough to have a tv show 😁
Thank you! That’s really kind of you to say 😊 you never know eh?
Lets be honest, i really like your videos and have now watched a very large number and have learnt many interesting facts .. .. ..
However, I find your sheer cuteness and handsome good looks very distracting. Making it hard to focus on the video content while watching your handsome face. Looking back through you video Catalog i can see you maturing and growing and believe you are growing into a very handsome man.
Please keep up the good work as I love listening to you while watching you. And your droll humour is like icing on a cake... Keep growing handsomer and you will remain super popular with everybody.
Movie reference correction - the 'Velociraptors' in the movies are based off of the UtahRaptor, which just happens to be what Dr Allan Grant was excavating when his character is introduced.
Utahraptor was discovered after the movie was released, buddy.
I don’t believe they hunted in packs either. They basically didn’t need to. However, I’m sure cooperation existed in some capacity
I remember when I first heard about deinonychus. I thought coming upon one would have been a nightmare, this was well before Jurassic Park. I remember me and my kids obsessing over it, and then I saw a CGI one in of all things, the Super Mario Brothers movie. It was tied to a post and there was compassion for it. I wondered why no one made a decent movie with something like that. Ha, got my wish.
GOOD'AY Mate!!! JP Raptors= A pack Deinonychus the size of Utahraptors🦖🦖🦖🦖
does the movie clip at 6:33 have a sauropod biting/predating on a large theropod?? Man. We seriously have come a long way if that's the case.
Someone needs to make a movie where they 'chickenosaur' a Cassowary. Better still, 'chickenosaur' a Cassowary IRL.
My favourite Dromeosaur.
I've written a comment under another video about what I'm going to say here. So this might seem like déja vu.
I was born in 1962. I've been into dinosaurs since I was three ("The Meat Eating Dinosaur" was a children's book I quoted. Constantly.). So I lived through this transition.
I never heard about Ostram until much later on, because back then the general public did not have the kind of information access we have now. This meant that what you had were books in your library and magazines, and up until the 80s, those were dominated by more conservative paleontologists, who resisted the idea of dino endothermy and "birds = dinosaurs".
As I had mentioned, Robert Bakker was a popular proponent of the new perspective, and he got a lot of grief for it, which he wrote about at length un his books. He called it the "harrumph/I knew it" dicotomy; establishment paleontologists would "harrumph" new research supporting the new perspective on dinosaurs, and anything which seemed to contradict it was pounced on with "I KNEW IT!*
So these notions did not catch on quickly at all. It took a great deal of painstaking work and many, many, many papers, not to mention some strategic deaths (yes, unfortunately certain philosophers of science are right, sometimes scientific theories change only when certain well placed scientists die).
In fact, I clearly remember Bakker in one of his popular books talking about his "completely wild theory" where he created a large supergroup called "Dinosauria" which included birds as a subgroup. When he was writing (sometime in the 70s) that was considered to be UTTERLY outrageous. Bananas. Mad. It was pre "dinosaurs have furcula", so it was perceived as completely unsupported, Archaeopteryx notwithstanding.
I say all this to point out that everything you talk about so beautifully and clearly has been realized only through a lot of intellectual blood, sweat, and tears. People, including scientists, don't relinquish their preconceptions easily, and certainly not without a fight, and those are often acrimonious.
"Dinosaurs" were synonymous with "maladaptive, outmoded, passé, extinct". I myself am "a dinosaur" in many ways, metaphorically. Those preconceptions affected perceptions, both in the general population, and in scientists as well, who are above all else, human.
3 feet/1 m at the shoulder and 220 lbs/100 kgs. This was an animal the size of an adult male Mountain Lion. How fast can YOU run Dino-gen?
Not fast enough 😅
did eye placement back then still have predictor eyes at front and prey on the side?
As a general rule, yes, but there were quite a few more exceptions than there are with mammals 🙂
Dinosaurs are birds and birds are dinosaurs. Dinosaurs didn’t die out!
Nope birds are dinosaurs but dinosaurs aren’t birds.
I find it unlikely that one dinosaur fed on another dinosaur just because they lived within a few million years of each without direct evidence. Lions and kangaroos live at the same point in time, yet lions don't hunt kangaroos.
Evolutionary speaking, T-Rex beame the Kangaroo. The similarities are undeniable. Long tail for balance, short upper arms, and those great hind legs that with a few Evolutionary adjustments, we have a vegetarian version of T-Rex!
Interesting video. Thanks! Please work on your audio. I had to max my volume to adequately hear you and with your low voice it was sometimes a strain to clearly hear what you said.
Utah Raptor my fav
He's awesome, Man not to mention he's handsome as hell ,and looks like Eroll Flynn's Son, with his handsome 1940's-ish good looks and appearance!! Great voice, too. easy going ,unique. thanks and say hello to Jimi Hendrix if a see him in London, Mate. thanks a Southern "Yank" @
Thanks man, really kind words and I’m glad you enjoyed it 😊
When you find out how the fossil hunters back in the day used to just make shit up constantly and just stick bones together from different species and present it as a dinosaur it makes sense that they are figuring out they were wrong about everything
Road Runner's Ancestors Beep Beep!!!
So Velocoraptor means "Bicycle bird" ?
Could they be also warm-blooded? That could make them into some entirely new kind of animals: flightless feathered reptiles, barely distinguishable from the birds we all are used to.
Dinosaurs were certainly warm blooded, as their anatomy is not compatible with sluggish cold-blooded animals, birds are classified as a type of dinosaur, they are Avialid Theropods, even with warm-blood and feathers, dinosaurs and pterosaurs are still classified as reptiles, as one cannot outgrow your classification in cladistics.
Gowan sir
The real Jurassic park "velociraptors"