The Facts About Dinosaurs & Feathers

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  • Опубликовано: 23 дек 2024

Комментарии • 1,8 тыс.

  • @katherinestives940
    @katherinestives940 4 года назад +534

    Something a bit amusing to me is that I am old enough to remember when the "theory" that birds were related to dinosaurs was controversial. Most scientists at the time argued over the concept. Now, it's just accepted.

    • @mlgodzilla4206
      @mlgodzilla4206 3 года назад +44

      Probably because a ton of fossils of feathered dinosaurs have been found who also have many similar features to that of birds

    • @gregmuon
      @gregmuon 3 года назад +32

      I guess I am old enough too. When I was in college the notion that birds were dinosaurs was already around, but it it was considered a crackpot theory.

    • @anthonycrowley2264
      @anthonycrowley2264 3 года назад +2

      @Where's the hen? most of the ones who still say stuff like that are the religious nuts who "don't believe in" evolution

    • @luminous420
      @luminous420 2 года назад +15

      Beyond the feather's there are other traits that links avians to other therapods like the wishbones and their feet.

    • @NelsonDiscovery
      @NelsonDiscovery 2 года назад +3

      @@anthonycrowley2264 I wonder where the normaltrash eggs are who still don't believe dinosaurs existed.

  • @angelinakardakova
    @angelinakardakova 7 лет назад +769

    I love how all hosts on this channel look like nerds and rockstars at the same time

    • @eons
      @eons  7 лет назад +269

      I've been told that I look like a dumb jock, but I'm actually a dumb nerd. (BdeP)

    • @kattiestoneman1059
      @kattiestoneman1059 6 лет назад +22

      They super inspire me though

    • @ambergris5705
      @ambergris5705 5 лет назад +23

      OK, Rock star isn't the first thing I though when I saw Hank Green, but feel free.
      However, I do see what you mean.

    • @scitechian
      @scitechian 5 лет назад +20

      @@ambergris5705 He's kind of a rock star in terms of having legit old-school RUclips credentials.

    • @daviddraper890
      @daviddraper890 5 лет назад +26

      @@ambergris5705 Hank also plays music and even has a nerdy punk rock band called Hank Green & the Perfect Strangers.

  • @juliec5151
    @juliec5151 6 лет назад +485

    This video is so beautiful... it reminds me of when I was a little girl dreaming about becoming a paleontologist :')
    Now if you'll excuse me, I need to make a trip to the dinosaur exhibit at my local museum.

    • @lukeskywalkerjediknight2125
      @lukeskywalkerjediknight2125 6 лет назад +4

      Julie C Skywalker gl hf 👍🏻✌🏻️:D

    • @shenghan9385
      @shenghan9385 5 лет назад +16

      Lucky you that you have a dinosaur exhibit near you.

    • @blackwater7183
      @blackwater7183 5 лет назад +11

      Same when I was a little boy I dream about dinosaurs now I am one...

    • @LadyLiberty-c8i
      @LadyLiberty-c8i 4 года назад +1

      That’s nice 👍🏾

    • @MaryAnnNytowl
      @MaryAnnNytowl 4 года назад +5

      @Sile72 um, no. Just no. Just because you don't believe or understand the science of archaeology doesn't mean it's fiction. More likely is that the existence of your brain is fiction.

  • @jcortese3300
    @jcortese3300 7 лет назад +1968

    You know what I'd love to learn about -- not the appearance of feathers on dinosaurs, but BEAKS. Feathers on dinosaurs seem reasonable to me. They're just the warm outer covering on something, and they don't require a radical reshaping of the animal. They're sort of a "coat of paint" on the existing animal, like fur.
    But bills and beaks? To me, that's the single biggest difference between the extinct dinosaurs and the ones we have around today, the birds. Beaks require a radical reshaping of the skull and the animal's most important interface with the outside world: its mouth. I mean, beaks versus teeth involves a completely different change in what an animal eats, which has got to impact its survival and living habits way more than feathers. Maybe beaked dinosaurs survived because beaks are an adaptation for animals that eat small seeds and small prey, and maybe creatures that lived on tiny living things were better able to survive post-asteroid-impact than the big toothy ones that needed to eat big old prey.
    I think sometimes we focus too much on the feathers as the biggest difference between dinosaurs and birds, but to me, the beaks and bills are a far greater mystery, and I just can't see how they arose. What kind of mutation would result in a beak versus a mouth? Where do the teeth go? Are there reptiles or birds that have both beaks AND teeth? Once beaks evolved, have they ever disappeared? Has such a massive alteration in an animal's mouth ever happened in other types of animals, like mammals or insects?

    • @stevenbaumann8692
      @stevenbaumann8692 7 лет назад +389

      Janis Cortese beaks are common in many different types of dinosaurs. They also appear in other animals like turtles. I would like to know why no toothed avian dinosaurs survived.

    • @Slashplite
      @Slashplite 7 лет назад +110

      some reptiles have beaks. There is this one turtle with a beak and his mouth is basically a straw

    • @AmogusEnjoyer99
      @AmogusEnjoyer99 7 лет назад +42

      Janis Cortese beaks evolved from dinos that gradually lost teeth throuout the various stages of species

    • @MrStensnask
      @MrStensnask 7 лет назад +122

      Good question. Actually, many species of ducks have serrated bills and those serrations act (and look) much like teeth. Also, the evolution of the beak would've taken many thousands, maybe even millions, of years. Something like that doesn't just happen over a few hundred years. As far as we know, birds haven't devolved beaks ever in the history of birds. They're incredibly versatile tools just like different kinds of teeth are for mammals and reptiles. That's not to say that it couldn't happen because of course it could. It's all stored in the genes of birds. That's why some scientists hope to genetically reverse engineer chickens to bring out dinosaur traits.

    • @binky2819
      @binky2819 7 лет назад +86

      I think you kind of answered your own question. Beaks (most likely) evolved to take advantage of other food resources (seeds, insects) to avoid competition with other species. It's easy to see how small theropods would evolve beaks, because small creatures could survive on a diet of seeds and stuff, but even large theropods (such as Gigantoraptor) had beaks so it could be possible that they evolved multiple times.
      Modern day birds still have genes in their DNA necessary to make teeth, they're just not activated at any point during their development.
      As far as I know it's impossible for an animal to simultaneously have teeth and a beak. All insects have external mouthparts (they don't have jaws like us).
      And extremely modified mouths have appeared in other tetrapods, which when you think about it, it's also hard to imagine how they became so precise and specialized. For instance, chameleons have elongated tongues that they can shoot out of their mouth to catch insects from a distance, anteaters have lost all of their teeth and have a ridiculously long and narrow "snout" with an even longer tongue, some whales have also lost their teeth and replaced them with baleen which they use to filter food from large gulps of water, snakes have hollow fangs through which they inject venom to stun or kill prey and they are folded back when not in use, etc.

  • @xelxebar
    @xelxebar 6 лет назад +52

    I just binged this whole channel!
    Motivated me to finally memorize the eons, eras, periods and epochs. That little bit of memorization has made it a lot easier to remember the chronology of geologic events. Having an overview idea of what life existen when significantly enriches these videos and other "deep history" stories.
    Thank you so much and keep up the awesome work!

  • @AntonioBarba_TheKaneB
    @AntonioBarba_TheKaneB 7 лет назад +413

    A giant jurassic bald eagle is equally terrifying as a giant two legged crocodile. Feathers might look like fluffy and all, but modern raptors are perfect killers, like cats with wings!

    • @SKy_the_Thunder
      @SKy_the_Thunder 7 лет назад +56

      Imagine getting stalked by a man-sized owl... *shudder*

    • @mladtheimpaler
      @mladtheimpaler 7 лет назад +4

      SKy_the_Thunder just search up owl man prank.

    • @piggyoinkoink6352
      @piggyoinkoink6352 6 лет назад +42

      I can picture Deinonychus as a cross between an oversized land eagle and a roadrunner, with teeth and sickle claws added to the mix. Now THAT'S an awesome sight I'd love to see in a movie.

    • @EmmaSpAce111
      @EmmaSpAce111 6 лет назад

      yas

    • @pixelapocrypha
      @pixelapocrypha 6 лет назад +3

      Perfect killers because they've had millions of years to perfect it. It's truly awe inspiring.

  • @jessicalee333
    @jessicalee333 7 лет назад +645

    If terror birds were still around, we'd have no trouble accepting feathered dinosaurs, or the fact that birds are related to them. Those things were terrifying!

    • @davidls187
      @davidls187 6 лет назад +103

      People kind of accept birds are related to dinosaurs by now, but they refuse to accept the fact that they ARE dinosaurs. Let's start a trend. #BirdsAreDinosaurs

    • @arachnid83
      @arachnid83 6 лет назад +30

      Birds maybe dinos but let's just reserve that name to honor those that fell to the KT event.

    • @APD9
      @APD9 6 лет назад +46

      Cassowarys are scary

    • @AntiFaGoat
      @AntiFaGoat 5 лет назад +9

      I think the connection might have been made sooner if they were still around.

    • @christopherlongsworth2591
      @christopherlongsworth2591 5 лет назад +1

      How do you know? Unless you Vandal Savage, I garuntee that terror birds went extinct before your parent's parent's parents were even in the process of conception.

  • @irenehynes7536
    @irenehynes7536 4 года назад +24

    This is an awesome revelation! When I was about 7, I collected Red Rose Tea dinosaur cards, and loved them! I dreamed of becoming a paleontologist then, and I am STILL fascinated. I can remember thinking: “some Dino’s look like birds, and why can’t they have feathers?” The people I said this to, at school, and to family, laughed at me. But look who is laughing now. Impressive!

  • @patrickfitzgerald2861
    @patrickfitzgerald2861 7 лет назад +11

    What amazes me is that there are enough fossils to learn anything at all. Each one is a lucky accident, and fragile feather fossils even more so. Thank you for this video PBS.

  • @susanoo6483
    @susanoo6483 7 лет назад +156

    Now I'd like to see a video about how beaks evolved. Not just in birds, but other reptiles.

    • @lachlanmacarthur8992
      @lachlanmacarthur8992 7 лет назад +2

      Aria of the Aberrant that's something I really want to know.

    • @piggyoinkoink6352
      @piggyoinkoink6352 6 лет назад +16

      Weren't there lots of beaked dinosaurs? Among theropods there are the oviraptors and the ornithomimids, not to mention hadrosaurs and ceratopsians.
      A bigger question would be, why did none of the toothed dinosaurs (including the toothed early birds) survive to the present? Did beaks provide that much of an advantage?

    • @mho...
      @mho... 2 года назад +1

      @@piggyoinkoink6352 main reason is a Beak is waaaaaay lighter then a yaw with teeth!

    • @sorrenblitz805
      @sorrenblitz805 2 года назад +3

      I'm actually far more interested in how beaks evolved in cephalopods, not reptiles.

  • @LuigiTheHeadcrab
    @LuigiTheHeadcrab 3 года назад +16

    whenever the dinos had short pointless nub hands I imagine they had long fancy feathers on their 'fingers' to attract mates or whatever. Modern birds with pointless nubs usually have long fancy feathers.

  • @MoebiusPan
    @MoebiusPan 7 лет назад +50

    An episode on the species that survived the Permian extinction, and the hardships of life after that would be quite interesting.

    • @evelynsnyder5866
      @evelynsnyder5866 7 лет назад +2

      I like this idea! You always hear about the ones that died out but not the ones that lived.

    • @vampyricon7026
      @vampyricon7026 7 лет назад

      Would there be hardships? I woulda thunk that there are mamy more niches to be filled than there are species so everyone's happy

    • @robinchesterfield42
      @robinchesterfield42 7 лет назад +1

      I support this. Actually the Permian extinction in general is fascinating...and so sad. Most of an entire class of creatures (the "mammal-like reptiles") went extinct...and if you think about it, they're kind of OUR dinosaurs. In the sense that they were "part" reptile and part _mammal_, rather than "part" bird, and the in-between phase doesn't exist anymore but their descendants took over the world.
      Also I kinda like Gorgonopsian for some reason. :P

    • @robinchesterfield42
      @robinchesterfield42 7 лет назад +1

      +Vampyricon Weeeelll...technically yes, but the air would still be low oxygen, full of ash, wrong temperature and most of the plants would still be dead for a long time afterwards. (Not to mention what happened to the oceans!) More like lots of niches to fill _if you can_...

  • @FengXingFengXing
    @FengXingFengXing 7 лет назад +194

    Want see hummingbird evolution!

  • @moomooimasheep1705
    @moomooimasheep1705 7 лет назад +371

    Most of the comments are "feathers are not scary" or " i would love a pet fluffy dino" or something like that but would you mess with a angry cassowary (scary-ass fricken bird from hell) or what about wolves or a bear, fluffy but not very friendly

    • @SKy_the_Thunder
      @SKy_the_Thunder 7 лет назад +66

      Try hugging a hungry man-sized eagle.

    • @jessicalee333
      @jessicalee333 7 лет назад +66

      Australia fought a war against Emus and lost. It took ten shots from machine guns per Emu killed. They compared Emus to Zulu warriors for their bravery and resistance to being brought down by gunfire.

    • @theamazinggamers5948
      @theamazinggamers5948 6 лет назад +32

      Try petting a hairy man. It’s pretty terrifying.

    • @maniacram
      @maniacram 6 лет назад +9

      Jessica Lee I don’t know why but that is one of the funniest things I’ve read 😂

    • @ismaelrubio4768
      @ismaelrubio4768 6 лет назад +2

      I havent seen any of those comments but i do agree

  • @michrain5872
    @michrain5872 7 лет назад +3

    Every time I stop to admire a bird's flight I'm like, "to think this is what dinosaurs came to...", and I feel humbled and amazed, fortunate to be able to witness the result of millions of years of evolution and change in a single moment :3

  • @veggieboyultimate
    @veggieboyultimate 4 года назад +1

    It is so amazing how paleontologist manage to make such ground breaking discoveries like this which makes the dinosaurs even more amazing to look at considering how long they lived and how diverse they were.

  • @irreversiblyhuman
    @irreversiblyhuman 7 лет назад +159

    This lady is an awesome presenter. Thank you for the information provided xxx :)

    • @JohnnyWishbone85
      @JohnnyWishbone85 4 года назад +1

      The thirst is real.

    • @AlamoOriginal
      @AlamoOriginal 4 года назад

      She's pretty, i am definitely into her, i mean into her presentation

    • @Breviparopus
      @Breviparopus 3 года назад

      They all are and so informative videos, I only wish that they would make a video about all the prehistoric creatcures they know

  • @xxXthekevXxx
    @xxXthekevXxx 7 лет назад +32

    Such a great video! And I’m loving the intelligent conversations and debates happening in the comments haha such a difference from typical channels’ comment sections :)

  • @zeinnerp7609
    @zeinnerp7609 7 лет назад +70

    You should really make a video on flying, How it developed in life's history. Going from the weird Carboniferous arthropods, to the winged tetrapods from the Permian, pterosaurs (which are themselves another interesting topic) to birds and bats.

  • @nordfreiheit
    @nordfreiheit 5 лет назад +11

    This is so amazing. As a child in the 90s, I was fascinated by dinosaurs. Learning that they were more bird-like and had feathers (or even fuzz) instead of just being leathery or with scales restores my childlike wonder about them- and totally changes my perspective on birds today. I'm so happy advances continue to be made in this field.

  • @PurpleDrink1
    @PurpleDrink1 6 лет назад +5

    Dino Fluff is literally the cutest thing I've ever heard

  • @FredHarvey779
    @FredHarvey779 7 лет назад +35

    I clicked like on this vid, but..., I actually loved it! Thanks for helping me learn.

    • @eons
      @eons  7 лет назад +3

      Thanks for watching! And liking! (BdeP)

  • @FabledThunder
    @FabledThunder 7 лет назад +366

    That means I’ve been eating dinosaurs all along. lol

    • @demonking86420
      @demonking86420 5 лет назад +26

      And wizards were using dinosaurs for messaging, yeah (owls, they used owls)

    • @3fortheroad
      @3fortheroad 5 лет назад +32

      T rex--tastes like chicken.

    • @Ett.Gammalt.Bergtroll
      @Ett.Gammalt.Bergtroll 5 лет назад +21

      I’ma go fry some T-Rex Nuggets.

    • @peterjamesgabinete5346
      @peterjamesgabinete5346 5 лет назад +2

      Fabled Thunder lol so true.

    • @vituperation
      @vituperation 4 года назад +27

      So dinosaur-shaped chicken nuggets are really just dinosaur-shaped dinosaur nuggets.

  • @Grand_History
    @Grand_History 7 лет назад +27

    I'd like to learn about the different terms used in paleontology. Taxonomy, phylogeny, etc.

  • @captainsugar8041
    @captainsugar8041 7 лет назад +24

    I love this channel. Teach me ALL the things. 🙌🏻

    • @aliblis2347
      @aliblis2347 5 лет назад

      *Better to admit in mental hosting*

  • @animalman57
    @animalman57 7 лет назад +123

    Please do one on Titanoboa.

  • @DaHoppah
    @DaHoppah 7 лет назад +24

    I’d love to see an episode on the “boar croc” Kaprosuchus!

  • @Kaylad8528
    @Kaylad8528 7 лет назад +42

    How did vertebrae/the spine evolve? Why do all land vertebrates have four limbs?

    • @sierrajay809
      @sierrajay809 7 лет назад +2

      Kaylad8528 Look up Tiktaalik

    • @jaschabull2365
      @jaschabull2365 7 лет назад +12

      Also, check out Trey the Explainer's video on ontogeny and neoteny. Apparently, considering sea squirts start out being kind of fishlike and having vaguely spine-esque parts, it's thought there were some of those which didn't grow up and kept the fishy form and it led to vertebrates.

    • @Ryan-el7zf
      @Ryan-el7zf 7 лет назад +2

      You might want to check out the two-part documentary with David Attenborough called _Rise of the Vertebrates_ - you can find it on youtube and it should answer your question pretty well :)

    • @UlaisisP
      @UlaisisP 7 лет назад +5

      I´m not sure all land vertebrates have four limbs. Take snakes for example.

    • @Ryan-el7zf
      @Ryan-el7zf 7 лет назад +6

      UlaisisP They _did_ have four limbs, though. ;) While they have no limbs today, the ancestors of snakes and legless lizards had four limbs like all other vertebrates. Eventually these legs became vestigial over time as they moved on to slithering, then they lost them altogether. AFAIA there are no known vertebrates that don't have, or whose ancestors didn't have, four limbs.

  • @alexandralee303
    @alexandralee303 7 лет назад +13

    Could it be possible that flight evolved from the feathered dinos flapping to get up trees? Like it gave them an advantage to get away from predators and to chase prey, so I can totally see it gradually becoming flying up trees over time

  • @mkmajungu
    @mkmajungu 4 года назад +2

    Yall made me view birds differently for the past 4 months cuz im addicted to all of your prehistoric series going through the cambrian to all the way to the cretacious

  • @macgonzo
    @macgonzo 7 лет назад +7

    Love the show :-) I would like to learn more about the "were dinosaurs cold-blooded or warm-blooded" debate, and the evidence we now have that answered this. Many thanks!

  • @MrStensnask
    @MrStensnask 7 лет назад +34

    How about covering the evolution of the egg shell? It's such a brilliant biological invention and it comes in so many shapes, sizes and even colors! Plus you get to disucss the wierd mammals that also have them. Neat, huh? :)

    • @Blue_Anzu
      @Blue_Anzu 7 лет назад

      Well..... it only comes in one shape :P

    • @MrStensnask
      @MrStensnask 7 лет назад +3

      No, it doesn't :) some eggs are almost completely spherical, some are oblong and some have the more traditional egg shape with a wide bottom and a narrow top.

  • @Blobernik52
    @Blobernik52 7 лет назад +4

    I'm so happy, I asked this exact question on one of the first videos and now you've answered it. Thank you!

  • @joshxkerrigan
    @joshxkerrigan 7 лет назад +2

    I both adore and appreciate this channel. Great quality, no fluff, amazing.

  • @JoelFeila
    @JoelFeila 7 лет назад +187

    how about the evolution of the placenta

    • @YIIMM
      @YIIMM 7 лет назад +13

      Joel Feila Placentae evolved from marine animals related to corals and jellyfish. They migrated onto land at some point in the last 70-75 million years but fossil records are scarce due to their preferred habitats and lack of skeleton.

    • @scaper8
      @scaper8 7 лет назад +8

      YIIMM
      What!?

    • @UlaisisP
      @UlaisisP 7 лет назад +3

      What!?

    • @Lexivor
      @Lexivor 7 лет назад +6

      Placental mammals are symbiotes, created when egg laying mammals first started living with the placenta after they came out of the sea. It's just like lichens being plants and fungi living together.

    • @scaper8
      @scaper8 7 лет назад +10

      Please, stop. It was marginally humorous the first go around but when bad almost immediately. This simply isn't the place for such misinformation and falsehoods.
      If, by some crazy set of circumstances, you actually think that either of those two things are what actually happened, they aren't. As I understand it, science is a bit fuzzy on how, when, where, etc. but that is absolutely and fundamentally incorrect.

  • @marghiecanas9744
    @marghiecanas9744 5 лет назад +1

    this channel is just pure treasure

  • @C_Beaty
    @C_Beaty 7 лет назад +5

    I'd love to hear about the giant mammals of the last Ice Age! Also, it would be interesting to hear about the evolutionary path of a notable species (elephants have a particularly strange set of evolutionary ancestors, could be a great species for that).

  • @walterendres916
    @walterendres916 7 лет назад +2

    I really love this channel. Keep it up. It's the highlight of my week when a new video comes out.

  • @caroljomartin3051
    @caroljomartin3051 6 лет назад +3

    That's fascinating! If I had a time machine, I would definitely go back and study dinosaurs. I would LOVE to know more about their possible colors, too!

    • @Alice-gr1kb
      @Alice-gr1kb 5 лет назад

      Carol Jo Martin we know some of their colors

  • @randomhuman2602
    @randomhuman2602 6 лет назад +4

    Amazing and educational video! I showed this to my mom (because I am obsessed with dinosaurs) and showed her this so she understands more about our prehistoric fluffy friends.

  • @wbedard
    @wbedard 7 лет назад +23

    Wonderful job...you really knocked this one out of the park! Keep up the great work.

    • @vampyricon7026
      @vampyricon7026 7 лет назад +2

      Knocked this one out of the Jurassic Park

  • @masterprattu
    @masterprattu 23 часа назад

    PBS has struck gold with PBS:EONS. Kudos!

  • @eternal8song
    @eternal8song 6 лет назад +6

    I'd like to learn more about the Ediacaran Fauna. we talked about them briefly in my geology class, but honestly I still don't really understand anything that complex (relatively speaking) could survive the Cryogenic.

  • @UlaisisP
    @UlaisisP 7 лет назад +2

    One of the best episodes so far!
    still waiting for the Endosymbiosis episode, the most important step to having multi cellular organisms (it is debatable, I know)

  • @sethgale2968
    @sethgale2968 7 лет назад +52

    +PBS Eons There is plenty of Ceratopsian skin impressions that show they were scaly. Psittacosauridae is an early branch and located well outside Neoceratopsia. Basal Neoceratopsians like Aquilops do not have these feather fillements, and with the multiple skin impressions found in Ceratopsians like Centrosaurus, Chasmosaurus and Pachyrhinosaurus do not show evidence of feathers.

    • @MrStensnask
      @MrStensnask 7 лет назад +27

      I agree with aleix1203. Also, remember that many fossils have been uncovered showing absolutely no feathers or protofeathers and later - through the discovery of another fossil of the same species - it was discovered that the species in question actually did have some sort of feathers.

    • @mosquitomilk9877
      @mosquitomilk9877 7 лет назад +21

      (This is completely off topic but I just wanted to put this out here) Feathers are a type of scale.

    • @Ozraptor4
      @Ozraptor4 7 лет назад +17

      Similarly the presence of fuzz in Kulindadromeus, Tianyulong and Psittacosaurus would indicate (via phylogenetic bracketing) that hadrosaurs were feathery. Only we have numerous skin impressions, including the famous "mummies", of duckbills which demonstrate the presence of scales over the vast majority of their body. Clearly there was a great deal of variability in feather vs scale covering, even within closely related lineages = Parts of the tail that are clearly covered in fluff in Sinosauropteryx were scaly in the related Juravenator.

    • @sethgale2968
      @sethgale2968 7 лет назад +3

      Ozraptor4 But yet, no one depicts them as such. Either make Ornithichians all fuzzy since their ancestors like Tianyulong had fuzz, or keep it to taxa only confirmed to have them. Varience is seen in integumentary structures throughout the animal kingdom, across clades and even families. Sauropods arnt rendered feathery, although they are Saurischians and would be more likely to have them than Ornithiscians, especially derived ones like Triceratops.

    • @Ozraptor4
      @Ozraptor4 7 лет назад +2

      THE the agenda troll = depends if you consider the bristles to be homologous with Stage 1 protofeathers or not. In structure they appear match Prum's 1999 prediction of what a Stage 1 structure would look like. (doesn't change the main point that hadrosaurids were scaly though)

  • @danieljgore1
    @danieljgore1 7 лет назад +19

    Love the Paleozoic and Mesozoic posts (don't stop) but I'm starting to wonder when Cenozoic posts will happen and what they could be like. Or is there just too much fascinating fossil evidence to even BEGIN? *squee*

    • @robinchesterfield42
      @robinchesterfield42 7 лет назад +2

      Ohmygod, yes. Prehistoric mammals for the win! The weirder and less already-famous-in-movies the better. :)
      (Have you seen that one video where it shows a lot of Cenozoic creatures walking by a human silhouette, in order of size? It's seriously awesome.)

  • @rohanb2300
    @rohanb2300 7 лет назад +78

    How about Viruses ? How they came into being and evolved?

    • @InfectedChris
      @InfectedChris 7 лет назад +8

      Rohan Bassi I also would like a video on the history of the virus.

    • @Cyrillus_EX
      @Cyrillus_EX 7 лет назад +1

      Just google it, jeez it's not the 1800s. Now we have Internet

    • @BradShreds
      @BradShreds 6 лет назад +8

      I posted a comment PBS makes great videos. He’s simply asking them to work their magic on his subject of curiosity. Duh

    • @hootboi9092
      @hootboi9092 6 лет назад

      I posted a comment a typical answer of ppl who have no clue

    • @luigi2496
      @luigi2496 6 лет назад

      We started raising livestock and we got their diseases i know that much.

  • @animechica91
    @animechica91 5 лет назад +1

    Her skull necklace is amazing. Very informative!

  • @Estuardomendez13
    @Estuardomendez13 6 лет назад +50

    we live in a world where feathered dinasours hunt eachother mid air

    • @italucenaz
      @italucenaz 4 года назад +1

      This my man, is what I call evolution

  • @charlonsanchez6504
    @charlonsanchez6504 4 года назад +2

    I love how nice trex look with feathers

    • @italucenaz
      @italucenaz 4 года назад

      But now we knot that it were likely almost featherless, I do agree it would be pretty, but we have skin impressions, and the size and the environment in with they lived shows that probably the has no super fluffly T rex

  • @ottiej.914
    @ottiej.914 7 лет назад +3

    Love the series, thanks to everyone who helps make it possible, I got my notifications on for this and click on it everytime (:

  • @aimlesswalksphotography5797
    @aimlesswalksphotography5797 6 лет назад +2

    The hosts are really good. Great job!!

  • @richardadams4928
    @richardadams4928 3 года назад +3

    It took hundreds of millions of years to produce the perfect little tiny dinosaur who watched this video with me; my cockatiel, Baby.

  • @4saken404
    @4saken404 7 лет назад +1

    Thank you guys for adding verbal caveats into your information. Saying things like "may have" or "probably" give people a better idea of how solid the consensus is on many of these things. I have seen many "sciencey" broadcast programs that never make that distinction. They just throw out wild speculation, solid science, and various theories onto the screen without regard for accuracy. As long as it sounds interesting and fills time. Shows like "Walking with Dinosaurs" is a good example, and also many astronomy shows. They contain about enough educational value to maybe get a random channel surfer interested but that's about it.

  • @brookeconsole5719
    @brookeconsole5719 7 лет назад +177

    Dinosaurs were not giant lizard monsters, feather you like it or not.

    • @deepspaceexplorer4265
      @deepspaceexplorer4265 4 года назад +5

      And you know this because???

    • @TheMrPeteChannel
      @TheMrPeteChannel 4 года назад +2

      So birds are reptiles than? Since dinosaurs are reptiles.

    • @italucenaz
      @italucenaz 4 года назад +16

      @@TheMrPeteChannel birds are philogeneticaly reptiles, but we don't consider them reptiles just to facilitate the fields of study, they changed a lot and almost have no resemblance to they relatives, but they are indeed fancy reptiles

    • @italucenaz
      @italucenaz 4 года назад +2

      They were giant and most of them have no feather nor filaments, but they weren't monsters nor lizard-like, the T. rex for exemple certainly didn't have a lot o festhers, most of the herbivores and some carnivores have no direct nor indirect evidence of fluf

    • @rhthehuman866
      @rhthehuman866 4 года назад +2

      Mr. Pete Channel needs 800 subbies! Yes

  • @johnnyli4702
    @johnnyli4702 7 лет назад +55

    More about extinct birds... I've always wanted to know more about terror birds and the recently extinct giant moa. I find them a lot more interesting than modern birds...

    • @Blue_Anzu
      @Blue_Anzu 7 лет назад +9

      Look up the secretary bird, it's a lot like a Terror Bird. It runs around on the ground stomping on snakes and lizards

    • @phoeix940
      @phoeix940 7 лет назад +4

      Johnny Li Yeah, also the ratites; I like those, & made an Excel presentation about them. Moas and elephant birds would be awesome to ride if they were alive today; at least, we still have ostriches... Real-life chocobos. XD

    • @tacos394
      @tacos394 3 года назад +1

      yes to this idea!!!

    • @johnnyli4702
      @johnnyli4702 3 года назад

      @@tacos394 they already have videos on both now that you can check out :)

    • @WhiteChocolate74
      @WhiteChocolate74 3 года назад

      Elephant birds too

  • @stevenbaumann8692
    @stevenbaumann8692 7 лет назад +205

    I want to hug a fluffy T-Rex! That squirrel Dino is also huggable. Isn’t there talk that ornithasurs might have been misclassified?

    • @robinchesterfield42
      @robinchesterfield42 7 лет назад +21

      I KNOW! Well, not a T-Rex. I'm not that suicidal. But the Sinoseropteryx with its floofy plume tale is seriously adorable.
      There's also this game...I forget its name, newish game, where you play as a dinosaur baby (to begin with)? And the mama T-Rex had feathers all over with a white head? And I was like "HOLY CRAP IT'S A BALD EAGLE!" XD

    • @ihh2921
      @ihh2921 7 лет назад +3

      No one actually answeard his/ her question

    • @stevenbaumann8692
      @stevenbaumann8692 7 лет назад

      microbuilder we can only go where the data takes us and make our best interpretations.

    • @stevenbaumann8692
      @stevenbaumann8692 7 лет назад +1

      Pedro Rocha yes. Beats dying of cancer

    • @stevenbaumann8692
      @stevenbaumann8692 7 лет назад

      microbuilder stupid stubby arms. At least Sue is within 25 miles of me. I visit her quite often.

  • @sapojuajac
    @sapojuajac 6 лет назад +1

    This is a wonderful service, thank you!

  • @philipnorris6542
    @philipnorris6542 2 года назад +4

    Some dinosaurs had feathers, others didn't; some were warm-blooded, others were not; and some were probably brightly coloured while others were more drab, as in the animals that are around today.

  • @teetywoo3156
    @teetywoo3156 5 лет назад +1

    "Fluffier and fuzzier and more ornate" I love the language used by the script writer!

  • @NerdyGeeky
    @NerdyGeeky 7 лет назад +4

    I really love this whole channel

  • @multiyapples
    @multiyapples Год назад

    Thank you for covering this PBS Eons.

  • @MarcoRoepers
    @MarcoRoepers 7 лет назад +3

    Thank you very much. This was the information I was waiting for. All the images of T. Rex were wrong

  • @luudest
    @luudest 2 года назад +1

    3:38 It‘s the same development as with many inventions: A new feature spreads out in many forms, and then after time only the best will survive

  • @moomooimasheep1705
    @moomooimasheep1705 7 лет назад +9

    Thank you pbs thank you.

  • @jbaccanalia
    @jbaccanalia 3 года назад +2

    Kallie and Blake, you just created another serious nerd.
    Thank you for teaching me about phylogenetic bracketing and inference. And all the other stuff! You Rock! r fossilise?!

  • @wesleymcspadden5437
    @wesleymcspadden5437 5 лет назад +5

    You do know that feathers in T. Rex might have been a trait like brown hair or black hair, a lot of Theropods had feathers, but there are some Theropods like Carnotaurus had evidence that they had completely no feathers. It was also determined that Sauropods had no feathers at all. These discoveries are leading to debates if they should change the arrangement of sauropods from the dinosaur family tree. In Paleontology they are making new discoveries which will probably be a lot of changes as well. The T.rex did had evidence though that it only often had protofeathers from the back of its head to the beginning of the tail, but then they find some T.rexs that had no evidence of feathers, this is why it was determined that feathers might have been a trait like brown and black hair.

    • @AntiFaGoat
      @AntiFaGoat 5 лет назад +1

      I think if T-Rex did have feathers that they were like elephant body hair. It exists, but it's not very obvious on their tough skin and the purpose is practically vestigial. It's also possible that baby dinosaurs had a sort of "down." Soft tissue and skin preservation is still relatively rare, so who knows?

    • @limoncr5205
      @limoncr5205 2 года назад

      @@AntiFaGoat t-rex had scaled skin, we know that today

  • @MrPiepc
    @MrPiepc 7 лет назад +1

    This is my new favourite RUclips channel

  • @jellow242
    @jellow242 7 лет назад +3

    i just love this channel. i enjoy every video

  • @Tejaroxy
    @Tejaroxy 6 лет назад +1

    My son would love to see a show about dromaeosaurs! Thanks for this excellent show!

  • @aifan6148
    @aifan6148 6 лет назад +39

    Remake of Jurassic Park? Feathery dinosaurs are so cuddly ♡

    • @brandonshmandon1799
      @brandonshmandon1799 5 лет назад +4

      Ai Fan There may actually be feathered dinosaurs in Jurassic world 3

    • @severketorskeleton3759
      @severketorskeleton3759 5 лет назад +2

      just wait until that cute chicken start to run in your direction, I'TS SCARY
      wait, are we talking about dinos or ostriches?

    • @severketorskeleton3759
      @severketorskeleton3759 5 лет назад

      @@brandonshmandon1799 just some litle feathers in only the males head of ONE species isn't a thing to considerate

    • @brandonshmandon1799
      @brandonshmandon1799 5 лет назад +1

      Manley I was referring to an interview with Jackhorner that talked about including feathered dinos for JW 3.

    • @severketorskeleton3759
      @severketorskeleton3759 5 лет назад

      @@brandonshmandon1799 oh ok

  • @MrSicc274
    @MrSicc274 2 года назад

    Amazing channel. I’m addicted to these clips.

  • @wratched
    @wratched 7 лет назад +40

    Archaeopteryx means "ancient wing" ."First wing" would be "Protopteryx"

    • @xxXthekevXxx
      @xxXthekevXxx 7 лет назад

      This is a very informative thread! Thank you both for teaching me some prefixes today :)

    • @LucaDeflorian222
      @LucaDeflorian222 6 лет назад +2

      The first fossil of Archaeopteryx ever found was actually an isolated feather, so we could translate its name into "ancient/primordial feather".

  • @moldytaters4190
    @moldytaters4190 7 лет назад +55

    How about an episode of how people discovered what color the feathers/fur were?

    • @Daniel-vo1rx
      @Daniel-vo1rx 7 лет назад +22

      They already did that a few months ago

    • @cosmicke1311
      @cosmicke1311 7 лет назад +2

      Kason Zechiel its all a guess, they dont actually know

    • @cosmicke1311
      @cosmicke1311 7 лет назад

      well they kinda do

    • @Benson_aka_devils_advocate_88
      @Benson_aka_devils_advocate_88 7 лет назад +16

      cosmicke ฯ - It's more than a guess. They can go all the way down to the crystallin structure and look at how it would reflect light.

    • @vampyricon7026
      @vampyricon7026 7 лет назад +2

      A professor at my university worked on that. I think they used stimulated fluorescence.

  • @jivejunior8753
    @jivejunior8753 7 лет назад +159

    It's a true shame that Jurassic Park, one a notable forwarder of modern dinosaur models, is now the ultimate symbol of outdatedness. Lovers of Jurassic Park that fight against accurate dinosaur depictions are doing their own idol a serious disfavor.

    • @katiewade6238
      @katiewade6238 6 лет назад +32

      I just watch them to see the dinosaurs eat people.

    • @matthewcapobianco9332
      @matthewcapobianco9332 6 лет назад +3

      I believe you mean ... extinct.

    • @scandanmapping8507
      @scandanmapping8507 6 лет назад +5

      Jive Junior unless you’re talking about Tyrannosaurus, then the films were right.

    • @SteelHex
      @SteelHex 6 лет назад +5

      A fluffy T-Rex just doesn't have the same dramatic effect, as it would look like an oversized and toothed chicken. I understand why people don't want that to replace their childhood icon.

    • @kopeyka22
      @kopeyka22 6 лет назад +22

      @@scandanmapping8507 No the films weren't.
      - Tyrannosaurus couldn't roar, nothing other than mammals can roar
      - Feathers
      - Its arms should be doing a clapping position
      - Skull shape
      - Type of scales
      - Animals it lives around
      - Speed
      - The things it will attack
      - etc.

  • @dmsarentworking2458
    @dmsarentworking2458 5 лет назад

    Yet again I have been taught better by a RUclips channel than an actual school. Keep it up!

  • @criticalpoint7672
    @criticalpoint7672 7 лет назад +14

    Nice necklace.

  • @YungMonki2K
    @YungMonki2K Год назад +1

    I can't still wrap my head around, man. I was so brainwashed all my life, is hard to imagine dinosaurs like that...

  • @dinodude7290
    @dinodude7290 7 лет назад +3

    this is soo tue on soo many levels
    also great vids guys and girl

  • @kyleebeep
    @kyleebeep 7 лет назад +1

    Love love loving these new longer videos 👍👍👍👍

  • @italucenaz
    @italucenaz 4 года назад +3

    Tyranosaur was definately not completely feathered, maybe some fluf in some parts, but due to their region and fossilized skin imprints of a couple of tyranosaurids including Tyranosur itself, we know that it would probably be almost naked if not all

    • @carmensalazar825
      @carmensalazar825 4 года назад +1

      The scales were most likely from the feet of the t rex

  • @johnmanno9701
    @johnmanno9701 4 года назад +1

    It's SO funny seeing things like this now. Back when I was a kid, watching NOVA on Public Television, paleontologists got into HUGE fights over this, with most of them ADAMANTLY asserting that birds were DEFINITELY NOT directly descended from dinosaurs, dinosaurs were DEFINITELY NOT warm blooded, they they DEFINITELY DID NOT have feathers.
    Poor Robert Bakker was almost the line contrarian voice back then. And I sincerely wish that these "mini sci shows" would give him more credit than they do for standing up to what was then the mainstream, majority opinion. He really put up with a lot of flack. I've always admired him for that.

  • @Orlanzepol123
    @Orlanzepol123 3 года назад +5

    I was so amazed when I first heard that modern birds 🦅 evolved from dinosaurs. And I also wondered why it took these smart scientists so long to make the connection because when I look at my cockatiel’s feet and body shape I can clearly see its resemblance to the mighty ol’ dinosaur 🦖

    • @richardblazer8070
      @richardblazer8070 3 года назад +4

      Actually scientists had put the connection together during the 1800's, the group ornithischis literally means bird hipped, and scientists like henry huxley hypothesized that four winged gliding dinosaurs would be discovered decades upon decades before genera like microraptor were discovered, but the prevailing idea at the time was that birds evolved from pterosaurs and thw bird dinosaur connection didn't see the light of day again until the 60's

  • @vassa1972
    @vassa1972 6 лет назад +2

    Very cool as always loved the video I think that the early Dinos develop feathers or Proto feathers to keep them warm I'm guessing

  • @hippiedude7480
    @hippiedude7480 7 лет назад +8

    Dudes I want to see a video about allosaurus and the evaloution of large carnivorous dinosaurs

  • @angeluslupus
    @angeluslupus 7 лет назад

    Therizinosaur has got to be one of the most beautiful dinos I've ever seen! Also it looks like the ofspring of a Taun-taun and a Wampa!

  • @Willumpie
    @Willumpie 7 лет назад +4

    The list of references is amazingly long. Proves to me that pbs is taking this education thing REALLY seriously 😉👍😬 Love it!
    Oh and I also love the presenter. She is awesome!

  • @darkskies45
    @darkskies45 7 лет назад +1

    PBS Eons you rock!!!

  • @StarSpawn06
    @StarSpawn06 6 лет назад +7

    Pterasaurs, the sister-group to the dinosaurs, had hair-like body covering called pycnofibers, which were structurally similar to the protofeathers on theropod dinosaurs.
    So based on phylogenetic bracketing, it is reasonable to assume that protofeathers were a trait basically common to all dinosaurs.

    • @italucenaz
      @italucenaz 4 года назад

      Yes, it is reasonable, but we do have evidence that the bristles from the turkey is actually not related to the feathers, and if a mutation like taht occured in a nowaday bird, it could have happened in the past, for explemple maybe filaments evolved a couple of times

  • @crimesartbalaur
    @crimesartbalaur 7 лет назад +1

    Cover Notosuchians. They're amazing, wonderfully weird, I'd love to learn more about them, and I think quite a few other people would enjoy some the weirdest crocodylians.

  • @inkliizii
    @inkliizii 7 лет назад +32

    I'm trying to decide if that bird skull necklace is awesome or creepy. I'm leaning towards awesome, but idk.

    • @caliswagsociety
      @caliswagsociety 7 лет назад

      inkliizii Get a fossil necklace instead?

    • @modolief
      @modolief 7 лет назад +5

      Definitely awesome

    • @ffmfg
      @ffmfg 7 лет назад

      no. no. nope. creepy for me.

    • @tiagotiagot
      @tiagotiagot 7 лет назад

      A bit too edgy for my taste. But whatever.

    • @_serkancetinkaya
      @_serkancetinkaya 7 лет назад +2

      It reminded me of Cuthbert Allgood from Stephen King's Dark Tower series.

  • @semerick19
    @semerick19 3 года назад

    What a great summary, excellent video! Here's what I want next though: put back in the breaths between sentences! You don't need to worry that we'll stop the video if you allow 1 second of space!

  • @catcameron2495
    @catcameron2495 7 лет назад +5

    What about vocalizations? Most animals have calls for a variety or purposes. Did dinosaurs? Calls like birds?

    • @Blue_Anzu
      @Blue_Anzu 7 лет назад +3

      We think that dinosaurs had a variety of growls, hisses and maybe squeaks, like modern birds. They probably didn't chirp though because their vocal organs aren't identical

    • @catcameron2495
      @catcameron2495 7 лет назад

      Cool. If dinosaurs had feathers like birds it's fun, or terrifying, to imagine Albertosaurus and their cousins dancing like Wild Turkeys.

    • @thecheshire5762
      @thecheshire5762 5 лет назад

      Cat Cameron Yeah,Oviraptors probably did a weird little mating dance. Look up Khaan,the oviraptorid dino who was preserved while courting for a female.

    • @thecheshire5762
      @thecheshire5762 5 лет назад

      Cat Cameron Big guys like T rex and Albertos probably did closed mouth vocalisation like booms and grunts and purrs,and probably the majority of it was low frequency. Smaller guys like raptors may of sounded like the Russian Fish Eagle (search it up,its call is pretty weird) but may of hissed and did Closed Mouth Vocals as well

  • @TomTurbo-wh6op
    @TomTurbo-wh6op Год назад +1

    Good documentary, but one thing is missing... dinosaurs did not all live in arid regions, a lot lived in semi-arid or even humid environments.
    Downs are in fact a pretty good isolation, especially for smaller animals like younglings, but this diminishes, when the downs get wet.
    So, a stronger and even denser type of feather could have been developed as a cover feather against that moisture and they provided best protection by overlapping, similar to shingles.
    And maybe this feature of overlapping, asymmetric cover feathers later on enabled flight..

  • @vikasrao1033
    @vikasrao1033 5 лет назад +3

    Whoever says feathered dinosaurs aren't scary has clearly never met a riled goose

    • @kameron1290
      @kameron1290 4 года назад

      Lizard or the large flightless birds

  • @andrep4805
    @andrep4805 7 лет назад +2

    Maybe ibe if the best vids so far! So much knowledge and so well organised!

  • @garypalmer997
    @garypalmer997 7 лет назад +5

    I gotta say, i really appreciate that you mentioned some dino may have had feathers but there is no proof they had feathers like the T-rex or triceratops. Other people/RUclips channels just assume they did. Nice job 👍

    • @italucenaz
      @italucenaz 4 года назад

      From phylogenetic bracketing we do know that tiranosauridae had the possibility to have feathers, because Yutyranus did have, so T. rex probably had, but not like any image shown on the video, the animal were likely almost naked or even all naked in adulthood

  • @josephertz5786
    @josephertz5786 3 года назад +1

    I really enjoy learning about this stuff really quite interesting. Thank you for doing theses videos

  • @sunshine0805
    @sunshine0805 7 лет назад +3

    Can you make a video explaining the classification of dinosauria pleasee

  • @melodiousapollo7307
    @melodiousapollo7307 5 лет назад +1

    Think we'll get an updated feather video? Since they found a Pterosaur with feathers in 2018?