Dr. Polaris
Dr. Polaris
  • 193
  • 7 554 330
Dilophosaurus: A Misunderstood Icon
Due to its starring role in Jurassic Park, Dilophosaurus was catapulted into popular cultural fame. However, both in the Crichton novel and the Spielberg movie, the animal was depicted with a variety of fantastical attributes that are not found in the fossil record. In fact, Dilophosaurus, despite its distinctive appearance, was not that well known in scientific circles until 2020, when a new paper helped redefine our understanding of this Early Jurassic apex predator.
Thumbnail art by Ichthyovenator3351
www.patreon.com/c/DrPolaris
www.deviantart.com/drpolaris
Sources used for this video:
Brown, M. A.; Marsh, A. D. (2021). "The real Dilophosaurus would have eaten the Jurassic Park version for breakfast". Scientific American. 324 (1): 46-53.
Carrano, M.T.; Benson, R.B.J.; Sampson, S.D. (2012). "The phylogeny of Tetanurae (Dinosauria: Theropoda)". Journal of Systematic Palaeontology. 10 (2): 211-300.
Hone, D.W.E.; Naish, D. (2013). "The 'species recognition hypothesis' does not explain the presence and evolution of exaggerated structures in non-avialan dinosaurs". Journal of Zoology. 290 (3): 172-180.
Marsh, A.D.; Rowe, T.B. (2020). "A comprehensive anatomical and phylogenetic evaluation of Dilophosaurus wetherilli (Dinosauria, Theropoda) with descriptions of new specimens from the Kayenta Formation of northern Arizona". Journal of Paleontology. 94 (S78): 1-103.
Senter, P.; Sullivan, C. (2019). "Forelimbs of the theropod dinosaur Dilophosaurus wetherilli: Range of motion, influence of paleopathology and soft tissues, and description of a distal carpal bone". Palaeontologia Electronica.
Senter, P.; Juengst, S.L.; Heymann, D. (2016). "Record-breaking pain: The largest number and variety of forelimb bone maladies in a theropod dinosaur". PLOS ONE. 11 (2): e0149140.
Tkach, J.S. (October 19, 1996). Multi-element osteohistological analysis of Dilphosaurus wetherilli. Fifty-sixth Annual Meeting, Society of Vertebrate Paleontology. Journal of Vertebrate Paleontology. Abstracts of Papers. Vol. 16, no. 3. American Museum of Natural History, New York, New York. pp. 1A - 80A.
Welles, S.P. (1954). "New Jurassic dinosaur from the Kayenta Formation of Arizona". Bulletin of the Geological Society of America. 65 (6): 591-598.
Welles, S.P. (1984). "Dilophosaurus wetherilli (Dinosauria, Theropoda), osteology and comparisons". Palaeontographica Abteilung A. 185: 85-180.
Переглядів: 12 804

Відео

Radiodonts: 'Giants' of the Cambrian
Переглядів 10 тис.14 днів тому
The Radiodonts were a highly diverse lineage of Stem-Arthropods that emerged as part of the famous Cambrian Explosion, quickly developing large sizes for their time and moving into carnivorous niches. www.patreon.com/c/DrPolaris www.deviantart.com/drpolaris Sources used for this video: Bicknell RD, Schmidt M, Rahman IA, Edgecombe GD, Gutarra S, Daley AC, et al. (2023-07-12). "Raptorial appendag...
Did Dinosaurs live in Cold Climates?
Переглядів 27 тис.Місяць тому
The Mesozoic has often been imagined to be a time of dense tropical swamp forests and unending tropical conditions, although in reality global temperatures varied across the Triassic, Jurassic and Cretaceous periods. Roughly 125 mya, for example, Northeastern China possessed a cool temperate climate that was cold enough to receive snow during the winter. As attested by the incredibly rich fossi...
Paleo-Profile: The Mighty Megalosaurus
Переглядів 10 тис.Місяць тому
Please enjoy this episode examining the history of Megalosaurus, the first dinosaur to be scientifically described during the early 19th Century. www.deviantart.com/drpolaris www.patreon.com/c/DrPolaris #paleontology #dinosaur
Cynodonts: Mammals Before Mammals
Переглядів 14 тис.Місяць тому
Please enjoy this video examining the mammal-like Cynodonts, a very successful clade of Synapsids that filled many niches during the Triassic, giving to the true Mammaliaformes by the end of the Period. www.deviantart.com/drpolaris www.patreon.com/c/DrPolaris Sources used for this video: Bajdek, Piotr (2015). "Microbiota and food residues including possible evidence of pre-mammalian hair in Upp...
Paleo-Profile: Ornitholestes
Переглядів 8 тис.2 місяці тому
Please enjoy this video examining the relatively famous Late Jurassic small Theropod Ornitholestes, which may have been a basal relative of the highly successful Maniraptoriformes. www.deviantart.com/drpolaris www.patreon.com/c/DrPolaris Sources used for this video: Carpenter, Kenneth; Miles, Clifford; Ostrom, John H.; Cloward, Karen (2005). "Redescription of the Small Maniraptoran Theropods Or...
Australia's Lost Monotremes
Переглядів 13 тис.2 місяці тому
Please enjoy this video examining the diverse fossil monotremes of Mid-Cretaceous Australia. www.deviantart.com/drpolaris www.patreon.com/c/DrPolaris Sources used for this video: Álvarez-Carretero, Sandra; Tamuri, Asif U.; Battini, Matteo; Nascimento, Fabrícia F.; Carlisle, Emily; Asher, Robert J.; Yang, Ziheng; Donoghue, Philip C.J.; dos Reis, Mario (2022). "A species-level timeline of mammal ...
Early Evolution of Bats
Переглядів 12 тис.3 місяці тому
Please enjoy this video examining the early evolutionary history of bats, which exploded onto the scene during the Early Eocene and very quickly achieved a near global range. www.deviantart.com/drpolaris www.patreon.com/c/DrPolaris Sources used for this video: Amador, Lucila I.; Simmons, Nancy B.; Giannini, Norberto P. (March 2019). "Aerodynamic reconstruction of the primitive fossil bat Onycho...
Real Sea Serpents
Переглядів 28 тис.3 місяці тому
While sea serpents are often the subject of myth and legend, real aquatic snakes have a long fossil history, with some forms even growing to relatively large sizes. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. Sources used for this video: Bardet, Nathali...
Evolution of Eagles: Part 2
Переглядів 11 тис.4 місяці тому
Please enjoy the second part of my examination of the predatory Accipitrids. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. Sources used for this video: Brighton, Caroline H; Zusi, Lillias; McGowan, Kathryn A; Kinniry, Morgan; Kloepper, Laura N; Taylor, Gr...
Evolution of Eagles
Переглядів 19 тис.4 місяці тому
Please enjoy this video examining the evolution of the Accipitriformes, a highly successful lineage of mostly carnivorous birds that contains the buzzards, kites, eagles, Afro-Eurasian vultures among many others. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and educati...
The Rise of the Ornithopods
Переглядів 12 тис.5 місяців тому
Having first evolved during the Middle Jurassic as small, fast running herbivores, the Ornithopods began to develop larger body sizes by the end of the period. Equipped with highly efficient jaws and tightly packed teeth for processing plant matter, the group diversified rapidly going into the Cretaceous, possibly taking advantage of the Tithonian extinction event as well as the rise of floweri...
Early Evolution of Theropods
Переглядів 21 тис.5 місяців тому
Please enjoy this video examining the evolution of Triassic carnivorous dinosaurs. All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. References used for this video: Cau, Andrea (2018). "The assembly of the avian body plan : a 160-million-year long process" (PDF). Bollettino della Società Paleontologica Italiana. ...
Early Evolution of Plesiosaurs
Переглядів 15 тис.6 місяців тому
Please enjoy this video examining the rise of the early Plesiosaurs and their relatives. All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. References used for this video: Benson, R. B. J.; Druckenmiller, P. S. (2013). "Faunal turnover of marine tetrapods during the Jurassic-Cretaceous transition". Biological Revi...
Ceratosaurus: The Jurassic Underdog
Переглядів 16 тис.6 місяців тому
Please enjoy this video examining the striking but often overlooked Jurassic Theropod Ceratosaurus. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education.
Andrewsarchus: A Misunderstood Beast
Переглядів 36 тис.7 місяців тому
Andrewsarchus: A Misunderstood Beast
The Yowie: Australia's Bigfoot?
Переглядів 18 тис.7 місяців тому
The Yowie: Australia's Bigfoot?
Tentacled Geniuses: Evolution of Octopuses, Squid and Relatives
Переглядів 13 тис.7 місяців тому
Tentacled Geniuses: Evolution of Octopuses, Squid and Relatives
Bizarre Early Ichthyosaurs
Переглядів 14 тис.8 місяців тому
Bizarre Early Ichthyosaurs
The Largest Snakes to Ever Live?
Переглядів 11 тис.8 місяців тому
The Largest Snakes to Ever Live?
Tiny Titans: The Early Evolution of Sauropods
Переглядів 14 тис.9 місяців тому
Tiny Titans: The Early Evolution of Sauropods
Litopterns: South American Horse Camels
Переглядів 26 тис.9 місяців тому
Litopterns: South American Horse Camels
Hyraxes: Unexpected Elephant Relatives
Переглядів 19 тис.10 місяців тому
Hyraxes: Unexpected Elephant Relatives
The Cretaceous Ancestors of Modern Birds: Part 2
Переглядів 13 тис.10 місяців тому
The Cretaceous Ancestors of Modern Birds: Part 2
Early Evolution of Mosasaurs
Переглядів 16 тис.11 місяців тому
Early Evolution of Mosasaurs
Gigantopithecus: The Real King Kong
Переглядів 43 тис.11 місяців тому
Gigantopithecus: The Real King Kong
The Cretaceous Ancestors of Modern Birds
Переглядів 24 тис.Рік тому
The Cretaceous Ancestors of Modern Birds
Therocephalians: Beast Headed Proto-Mammals
Переглядів 16 тис.Рік тому
Therocephalians: Beast Headed Proto-Mammals
Pelagornithids: The Largest Flying Birds
Переглядів 25 тис.Рік тому
Pelagornithids: The Largest Flying Birds
Early Proboscideans: The First Tuskers
Переглядів 28 тис.Рік тому
Early Proboscideans: The First Tuskers

КОМЕНТАРІ

  • @danielchristian5541
    @danielchristian5541 2 хвилини тому

    Persistence hunter?

  • @Doug-c4g
    @Doug-c4g Годину тому

    Whatever, Google told me The London Zoo has a few Jba Fofi . Remember Always" NATURE HAS A WAY" so stop lieing to people, the Jba Fofi does exist, Google even admitted it, so try again.

  • @Beryllahawk
    @Beryllahawk 8 годин тому

    Thank you so much for mentioning the book and giving that warning. Crichton's work is excellent, but it IS a lot more visceral and graphic than most of the films made based on his books. (Terminal Man being a possible exception, but boy is that one obscure. And not about dinosaurs, heh.) A fascinating creature and really one of the better "faces" to introduce a kid to paleontology, even when that might include unraveling the confusion between film/pop culture assertions and the actual fossils and actual science.

  • @dougsowerby848
    @dougsowerby848 10 годин тому

    I thought I had read in some journal that there was evidence that the northern dinosaurs did migrate. Still, pretty cool stuff. Cheers.

  • @NatureEnjoyer523
    @NatureEnjoyer523 День тому

    I personally would argue that the often repeated 'fact' that the thylacine was a small game specialist is probably incorrect. First off, no scientific paper has ever concluded the thylacine had a weak bite, in fact, it was found that it had a proportionally powerful one (Wroe, McHenry, Thomason, 2005) And the small game specialist idea came from that the skull apparently couldn't resist the stresses of struggling prey. Which I recall was attributed to the skull being long and thin, which are also features a dog breed known as the borzoi possess, which was bred to hunt wolves with. Of course thylacine predation on sheep, kangaroos, wallabies and wombats have been well recorded in historical times, but have been completely ignored. It also doesn't make sense ecologically and evolutionary either. Competition wouldn't be a good argument, as going for small prey would bring it in more competition (perenties, Tasmanian devils, tiger quolls, wedge-tailed eagles) than prey around the size of a wombat or wallaroo (it would have to compete with komodo dragons which eat about everything that moves, big or small, and maybe Sacrophilius laniarius) and Thylacoleo, Quinkana and megalania seem to be adapted to prey much bigger than what the thylacine was reported to eat. It doesn't make sense evolutionary because the thylacine descended from ancenstors that went for larger prey, which is a trait that makes no sense to evolve away, as it limits adaptability. (Also I doubt the animal showed at 11:34 is a fox, as its too bulky to be a mangy fox, aswell as its tail being too thick for one and its face being way too thylacine like)

  • @Zeff-c2k
    @Zeff-c2k День тому

    Awesome content! I love dicynodonts!

  • @davidlloyd7597
    @davidlloyd7597 2 дні тому

    If it exists. It may not be a Smilodon but an animal related to African big cats that went through convergent evolution. As far as is known. The Smilodon's range was North and South America and did not extend to Africa

  • @Kezcodmobile
    @Kezcodmobile 2 дні тому

    I’m gonna be that movie nerd In the Jurassic world movie there’s a hologram of dilophosaurus and it’s around the same size as the “alpha” raptor

  • @joakos1122
    @joakos1122 2 дні тому

    Raptors FTW

  • @wyvern723
    @wyvern723 2 дні тому

    Yeah... The book Jurassic Park is very, very different... Hammond isn't a sweet, whimsical grandfather... And he goes out hard... After they have taken back control of the park. I read it at the age of 12... Probably not my dad's best idea...

  • @danielmalinen6337
    @danielmalinen6337 3 дні тому

    My first experience with the Jurassic Park movies was a VHS tapes that I watched with my uncle in 1999 or 2000 when I was about three and a half years old. My first own Jurassic Park movie was Jurassic Park 3, which was bought for us on DVD. Back then, Jurassic Park was allowed in Finland for all ages, but Little House on the Prairie was forbidden from those under 18. Ah, the golden beginning of the 2000s when Finland's age limit recommendations made no sense.

  • @markykid8760
    @markykid8760 3 дні тому

    Any badass from the Triassic is worth praise.

  • @LDrosophila
    @LDrosophila 3 дні тому

    38 babies! Bless her heart ❤

  • @LDrosophila
    @LDrosophila 3 дні тому

    My favorite guys

  • @JohnsonDoe-f3v
    @JohnsonDoe-f3v 3 дні тому

    Jurassic Park is with out a doubt my favourite dinosaur movie of all time 😁🦖🦕 # Here's hoping Jurassic World Rebirth will just a amazing as it's predecessors 😊

  • @sevenidols607
    @sevenidols607 3 дні тому

    it's 2025

  • @andrewstrongman305
    @andrewstrongman305 3 дні тому

    Not misunderstood, simply corrupted and co-opted in the interests of modern fiction. The actual dilophosaurus was not far removed from much smaller, basal theropods, and was the first undisputed (theropod) apex predator following the extinction of the gorgonopsians as the Devonian gave way to the Triassic. Later theropods were far more formidable, but if dilophosaurus existed today it would dominate even the largest mammalian predators due to it's imposing height and apparent size. Elephants, rhinos, hippos, and even giraffes and water-buffalo would too difficult/dangerous prey for a dilophosaur.

  • @restionSerpentine
    @restionSerpentine 3 дні тому

    My first experience with this dinosaur was the 1908s ROURKE diniosaur librarry book series

  • @stevesavy3368
    @stevesavy3368 3 дні тому

    Can I say how hilarious it is that usually when you have a size comparison between a human and Dilophosaurus... the human is almost always an expy of Nedry?

  • @WorldConstruct
    @WorldConstruct 3 дні тому

    You chose a fantastic set of accompanying images that really help in imagining the reality of this creature. 3:10 It would be very difficult to live in the 90s and not know that Michael Crichton wrote the book that became the movie-that’s what he was known for and had already accomplished with Andromeda Strain, and he was a huge egomaniac who put his name everywhere he could. He even went on to direct movies himself eventually. Similarly, the generally known sentiment was that the book was much better. It and Andromeda Strain are two of his most famous, and were often referenced in context of the movies. And if anyone hasn’t read Andromeda Strain, I highly recommend it, especially in the context of the post-pandemic world.

  • @ninodino444
    @ninodino444 3 дні тому

    Wait, that dude grew up in the 90s and sounds like a 60 year old man....

  • @ottlika
    @ottlika 3 дні тому

    that 'harmless to horror' scene was so impactful when i was young, all the dinos in the film were obviously friendly or dangerous from the start, except this one, where it's curiosity turns to predatory behavior based on Nedry's reaction to it, strongly learned the lesson 'not everything is what it seems' at 8 years old

  • @ODJJ-77.83
    @ODJJ-77.83 3 дні тому

    Hhhhhhhhhhhhhhhhhhggggghh

  • @GarGhuul
    @GarGhuul 3 дні тому

    Side tangent: was not suspecting MTG Jurassic Park. Weird.

  • @Matthew_Malenich
    @Matthew_Malenich 4 дні тому

    I'm like this with Prionosuchus. Not technically a dinosaur, but for some reason I'm fascinated by the idea of what's essentially a giant croco-salamander, and I can't explain exactly why.

  • @dr.polaris6423
    @dr.polaris6423 4 дні тому

    I'm so sorry guys but I've got to take this video down due to an error I made in correctly attributing a piece of art to its proper creator. I'll reupload it again shortly.

    • @dr.polaris6423
      @dr.polaris6423 3 дні тому

      Ignore this, I've got the issue sorted now!

  • @spammyv
    @spammyv 4 дні тому

    Speaking of the Jurassic Park novels, the novel of The Lost World is one of those books that has stuck with me- Because I rarely if ever see an author trash their own work so hard. Almost everything you think of as iconic to Jurassic Park (raptors in packs, T. Rex seeing movement, it's a unix system) gets mocked and shown why they wouldn't work. Very colorfully put in terms for the vision based on movement thing too.

  • @wavemasterxyra1630
    @wavemasterxyra1630 4 дні тому

    They were mixed with frog DNA, they were never gonna be 1 to 1...

    • @PercyTinglish
      @PercyTinglish 3 дні тому

      Yeah, a really silly contrivance that undermines most of the story

  • @Redneckkratos
    @Redneckkratos 4 дні тому

    Nedry: “What do ya want, you want food? Look at me, I’m soaking wet, I just fell down a hill, I have no food! I have nothing on me!” Dilo: “You *ARE* food…….”

  • @kam_lam13
    @kam_lam13 4 дні тому

    I respected the film as entertainment. Sure, it would be great if it would have kept closer to what the field thought of the animals up to that time. I was just glad that the cringy, despised character got what he deserved in that scene.

  • @alexweh
    @alexweh 4 дні тому

    Not too much to do with this video, but I really too just want to recommend the books, they are incredibly overlooked and offer so much more insight into all of the occurrences, especially as I feel that they are more grounded in a sense, less sensational than the films, though the horror aspects just are great too; I say this while also being a huge fan of the first film, I don't see either the film or the books as better than the other, inherently, but I love both for different reasons. Great video though, on one of my favourite dinosaurs.

  • @ravensthatflywiththenightm7319

    Ironically it's thanks to the Jurassic Park novel - not the movie, the novel - that made Dilophosaurus my absolute favorite dinosaur. At least the novel got the size right.

  • @williamestes629
    @williamestes629 4 дні тому

    When considering how dangerous dinosaurs could be one should look at modern stories of man eaters that's killed a lot of people.

  • @Pixalisk
    @Pixalisk 4 дні тому

    Jurassic Park is one of the few instances where the book and film differ significantly but are both really good. I love them both, and must have read the book at least ten times. The changes to the book (aging up the girl, making Hammond more likable, merge several minor characters, drop several secondary storylines) make for a much better movie than a more true-to-the-text adaptation would have been. Generally the pacing of the entire movie is great, and no need to say anything about the revolutionary effects. But still the book has the bigger "oh shit" moment, when they figure out why the computer system miscounted dinosaurs. While I love the movie with all my heart, it did indeed spread some "alternative facts" about Dilophosaurus (the size, the frill, the spitting, as mentioned in this video) and Raptors, whose size was modeled after Deinonychus (Deinonychus antirrhopus), not the much smaller Velociraptor (Velociraptor mongoliensis). This was kinda-explained in the book by refering to the Deinonychus as a species of Velociraptor (Velociraptor antirrhopus).

  • @toonrex2806
    @toonrex2806 4 дні тому

    It's ironic that the 2008 Turok has a more accurate Dilophosaurus than JP.

    • @RootVegetabIe
      @RootVegetabIe 4 дні тому

      I don't see the irony

    • @joakos1122
      @joakos1122 3 дні тому

      I wish they still made Turok games, turok evolution gives me big time childhood nostalgia

  • @lufsolitaire5351
    @lufsolitaire5351 4 дні тому

    My biggest curiosity nearly 30 years after the fact is why they didn’t try to super-size this dino considering the real animal was decently larger than it’s JP depiction. It wasn’t a small Raptor-sized predator but one of the first larger meso-predators like the Ceratosaurs or Asphaltovenator.

    • @PercyTinglish
      @PercyTinglish 3 дні тому

      An elephant isn't going to fit in the passenger seat

  • @ausgruenden1590
    @ausgruenden1590 5 днів тому

    If you have any say in this as a creator: PLEASE shut off that "automatic translation" feature. Nobody wants this kind of AI garbage. There's no reason for UA-cam to make it opt-out instead of opt-in.

  • @DeRien8
    @DeRien8 5 днів тому

    I swear I've seen one of the Jurassic Park franchise films featuring "compies" attacking and killing an infant in Costa Rica or some country nearby one of the park islands

  • @RyanAlexanderBloom
    @RyanAlexanderBloom 5 днів тому

    Members of the general public who think the JP dinosaurs were ever intended to be accurate are really not watching the films carefully. They explain straight out in the first film that they’re chimeras of archosaurs and amphibians. They’re designed by humans more so than resurrected from nature. This is stated again in JP3, when Grant mentions that they aren’t really necessarily accurate. Then Woo discusses this multiple times in the Jurassic World films. Anyone still clinging to the idea that they’re actually dinosaurs in the universe of the films is barely a casual fan as they’re ignoring all the times the films contradict this idea.

    • @RootVegetabIe
      @RootVegetabIe 4 дні тому

      Thank you. The book even explains that they are created to fit in with how people think dinosaurs look and behave, so visitors don't come home disappointed. Even pointing out the foul tempers of the mini-elephants created before the dinos. The dinos are straight up monsters.

  • @Gage-w2d
    @Gage-w2d 5 днів тому

    Dilophasaurus is my 2nd favourite carnivourouse dinosaur. My first being Allosaurus

  • @ichthyovenator3351
    @ichthyovenator3351 5 днів тому

    Extremely flattered that you used my art for the thumbnail! But could you credit me please? Thanks!

    • @dr.polaris6423
      @dr.polaris6423 4 дні тому

      I’ll credit you for your wonderful artwork in the description.

  • @Scrinwaipwr
    @Scrinwaipwr 5 днів тому

    Doesn't even need the frill or he venom spit to be interesting. One of my favourites too.

  • @bensantos3882
    @bensantos3882 5 днів тому

    This is the state dinosaur where my father's Indian Reservation is located! Also Sarasaurus too.

  • @guyh.4553
    @guyh.4553 5 днів тому

    Cool stuff Doc! BTW, what's up Doc? Ha ha ha ha!

  • @moonshine588
    @moonshine588 5 днів тому

    Great video. I know comments help with the algorithm, so.......Donald Trump sure is doing great. Let me know if you agree or disagree.

  • @kategod
    @kategod 5 днів тому

    when i visited the St. George dinosaur discovery site in Utah, there were thousands of footprints attributed to dilophosaurus. they seemed pretty adamant that while they were generalist predators they absolutely seemed built to catch fish. the forearms let them grab slippery bodies and the hooked upper jaw let them grab them more easily really like the big grizzlies of their time in that aspect

  • @mbvoelker8448
    @mbvoelker8448 5 днів тому

    It seems that there was a fad for claiming that many different carnivores were actually scavengers around that time.

    • @PercyTinglish
      @PercyTinglish 3 дні тому

      They thought they were slow and clunky, difficult to imagine them as particularly impressive hunters. So the scavenger assumption made a lot of sense

    • @mbvoelker8448
      @mbvoelker8448 3 дні тому

      @@PercyTinglish By the mid-80s we were learning that dinosaurs weren't really cold-blooded and sluggish. I think that some of it was simple contrarianism -- a backlash to the romanticism of the idea of dinosaurs as ultimate predators in the public imagination.

  • @romazone101
    @romazone101 5 днів тому

    Hi Dr. Polaris. Could the injuries of the Dilophosaurus @10:51 have occurred through out its lifetime in perhaps separate events? I kinda have many of the same scars from a long eventful life but I couldn't imagine surviving if they happened all at once.

  • @ThePalaeontologist
    @ThePalaeontologist 5 днів тому

    The thumbnail alone, wow. Nice lol

  • @JLAvey
    @JLAvey 5 днів тому

    Book usually is better. In this case, a lot more brutal too.