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Dinosaurs Doing The Backfloat

Meshach writes "The Globe and Mail has an interesting article about how the scientific community is becoming convinced that dinosaurs were able to float. This helps to explain how creatures of such huge mass were able to spread around the world."

32 comments

  1. Dinos doing the backstroke by Dancin_Santa · · Score: 1

    doo dah doo dah

    Matt Biondi surrenders.

  2. Correct me if I'm wrong... by EnVisiCrypt · · Score: 4, Insightful

    ... but the dinosaur's remains spread across the world due to the fact that their living bodies were all together on the super-continent pangea, which then separated, leaving the remains spread across the continents we live on today.

    Moreover, the article doesn't echo the article submitter when he said, "This helps to explain how creatures of such huge mass were able to spread around the world."

    In fact, the article merely speculates that this is how sauropods and the like moved without collapsing under their own weight.

    I'm not trying to knock the poster, but young people read this site, and I'd hate like hell for anyone to be misinformed.

    --


    *everything* is Orwellian to cats.
    1. Re:Correct me if I'm wrong... by magiluke · · Score: 1

      I'd definately think that it's difficult for such an animal to swim such great distances anyway. The "colossal corks" I'm sure would have to exert plenty of energy to swim from one shore to another, even though the shores might have been closer together back then. I'm not exactly certain on how long a dinosaur can go without food, but I'm pretty sure that such a sojourn might cause them to starve to death. Hmm... Maybe there are plenty of fossils under the ocean. But probably not, I would imagine that the salt water is pretty corrosive, but who knows?

      --
      -Magiluke

      Earl Grey, Hot.

    2. Re:Correct me if I'm wrong... by eggstasy · · Score: 3, Informative

      Pangaea broke up around 200 million years ago, and dinosaurs appeared around 210 million years ago, so only the very earliest of dinosaurs were around to see it happen, considering that they were around for another 135 million years after that.
      I'd hate like hell for anyone to be misinformed ;)

    3. Re:Correct me if I'm wrong... by Mattcelt · · Score: 2, Insightful

      and I'd hate like hell for anyone to be misinformed.

      Then you'd be better off encouraging them to get their information somewhere other than /.!

    4. Re:Correct me if I'm wrong... by EnVisiCrypt · · Score: 1

      /me was smacked down! I did some research (Like I should have done in the first place), and you are right.

      However, my original point mostly stands; dinosaurs did not get where they were by floating across the oceans like corks.

      Thanks for the correction.

      --


      *everything* is Orwellian to cats.
    5. Re:Correct me if I'm wrong... by Alsee · · Score: 1

      dinosaurs did not get where they were by floating across the oceans like corks.

      Right, they got where they were by floating across the oceans like cheeze whiz!

      Sorry, the image of "dinosaurs floating around like corks" struck my twisted funny-bone :D

      -

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      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  3. All I can say is... by Izanagi · · Score: 1

    What a sac of hot air!

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    SCO (noun.)- A Slimy Corporate Ogre. Often seeks free money.
  4. So they have found footprints.. by ForestGrump · · Score: 1

    Have they found bodyprints of when the dinosaur got in water too deep for it, tipped over and drowned?

    -Grump.

    --
    Is it true that more people vote for the winner of American Idol, than vote for the president? -Ali G.
  5. We care. by u-238 · · Score: 1, Insightful

    And it matters. Really.

  6. Correction: by Ieshan · · Score: 5, Funny

    You've got it all backwards.

    When Noah floated around in his Ark, the Dinosaurs had to go somewhere, so obviously they had to float. I mean, it just wouldn't do to have huge carnivores on the boat with Noah, would it? Clearly, a floating dinosaur is rendered harmless (very small rocks are harmless, and they float too!), and therefore, everything works scientifically according to God's design. Unfortunately, when the waters began to recede, the Dinosaurs floated all over the place, and most of them died from lack of proper places to pray, thus creating the fossils as we know them.

    Sheesh. You evolution people make me sick.

    Laugh. It's a joke.

    1. Re:Correction: by Overdrive_SS · · Score: 1

      I know you were making a joke, but why exactly wouldn't Noah have dinosaurs on the ark too? I mean Noah was a pretty old guy, maybe he was wise enough to gather baby dinosaurs instead of the 100 ft long big boys. Just a thought to ponder

    2. Re:Correction: by Anonymous Coward · · Score: 0

      And what pray tell would Noah have fed these growing carnivores? Other animals perhaps?

    3. Re:Correction: by Anonymous Coward · · Score: 0

      And what pray tell would Noah have fed these growing carnivores? Other animals perhaps? Probably the same thing he fed all the other carnivores.

  7. floating by mlush · · Score: 1

    I for one wish to be the first to welcome our floating joke overlords

  8. They could walk all right by heikkile · · Score: 1

    Scientific American had an article about Dino constuction (in 1993 - I am not sure), that showed that the legs of teh dinos were strong enough to allow them to walk and even run, some of them reasonably fast.

    --

    In Murphy We Turst

    1. Re:They could walk all right by Mirk · · Score: 2, Informative
      Dinosaur locomotion has been one of the big research areas in vertebrate palaeontology for decades, and it's not going to go away any time soon! I don't think you'd find any informed scientist today claiming that any dinosaur was obliged to live in water (as used to be a claimed of the sauropods twenty or thirty years ago), but exactly how athletic they were on land is still controversial.

      One camp, vocally led by Bob Bakker and Greg Paul, claims that most dinosaurs (including Tyrannosaurus and Triceratops) were capable of fast motion, of the order of 40mph (72khm), and it is of course this group that's influenced the dinosaurs in the Jurassic Park movies.

      Another, probably larger, group argues instead that the locomotory performance of most dinosaurs was more like that of elephants than rhinos, with T. rex for example capable of a fast walk but not a true run.

      The evidence is equivocal. rex knees seem to be built in such a way that they were permanently flexed in life, which is a running adaptation, but John Hutchison's study last year appeared to show that the animal would need 70% of its entire body-weight in leg muscles in order to run.

      It's a fascinating area, and everyone ought to study it! I particularly recommend starting with R. McNeill Alexander's very approachable book, Dynamics of Dinosaurs and other exinct giants Buy at amazon.com Buy at amazon.co.uk

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  9. food by grosa · · Score: 1

    Sauropods probably travelled in herds, and were wandering vegetarians. Being able to float might have helped to find food, or to survive the occasional flooding caused by monsoon rains, says Dr. Henderson.

    life is easy when you're a vegetarian, you can just float along with your mouth open, and eventually you get a full meal ;)

  10. more useful than you might think by grosa · · Score: 1

    aside from the geek value of all this research, it should provide a good basis to help solve some robotics problems in the future. lots of problems robots have with walking could probably be rationalized similarly to the problems huge, clumsy, unbalanced dinosaurs had. problems of large-object boyancy and maneuverability as well, although i don't imagine that these things were very maneuverable in water either.

    of course, i grew up playing with plastic dinosaurs and erektor sets, so i might be biased.

  11. I can see it now.... by Jhonny · · Score: 1

    Welcome to your first Dinasour swimming lesson! We are going to teach you how to float so we can baffle the scientics 2000000 years from now. MWAHAHAHAHA. Wont that be fun!!!

    --
    DUKEY!
  12. what about their tails? by misterpies · · Score: 1

    In claiming that sauropods could float but not swim, I wonder if the researchers considered their tails? I can see that a diplodocus might have trouble doing the doggy-paddle, but with a tail as long as a couple of city buses, you'd think they could get some speed up swimming tadpole-style. Also their tails and necks would probably be quite effective counterbalances if they did start to wobble.

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    The author of this post asserts his moral rights.
  13. Ok, everybody... by Anonymous Coward · · Score: 0

    How do you make a dinosaur float?

    Take a glass of root beer, add two scoops of ice cream, and one dinosaur.

    (sock it to me)

  14. Shouldn't be suprising by pmz · · Score: 1


    Elephants float. Horses float. Dogs float. Rats float. Humans float.

    There are too many advantages to being able to survive in water to think that dinosaurs would actually sink.

    1. Re:Shouldn't be suprising by Benm78 · · Score: 1
      Indeed.. I know not of any vertebrate that sinks in water.

      However, I can see the benefit of a body design that floats with the head on the upper side. Apparently, this is what this article and the theory about 'air sacks' and all is about.

    2. Re: Shouldn't be suprising by Black+Parrot · · Score: 1


      > Indeed.. I know not of any vertebrate that sinks in water.

      Supposedly chimps can't float (or swim), due to their reduced body fat.

      --
      Sheesh, evil *and* a jerk. -- Jade
    3. Re:Shouldn't be suprising by SAPHRguru · · Score: 1

      Actually I sink... very amusing for my family.. (dad try to float!)

  15. Re:Shouldn't be suprising??? by anactofgod · · Score: 1

    No one is arguing that there is no advantage to NOT floating. What these scientists did was find evidence that dinosaurs may have floated (anomolous footprints, spinal air sacs, etc.), then ran models/simulations to show that the evidence allows for brachiopods being able to float. This does not constitute *proof*, btw, just an credible assimilation of the gathered evidence to form a likely explanation.

    FYI, certain primates (chimps and orangutans, I think) will not float. So your logical argument of "it's advantageous, therefor it's obviously true" is false. Just as false as some future palentologist making the argument that "Eagles flew. Bats flew. Butterflies flew. Therefore humans must have flown - there are too many advantages for survival in flying that humans won't fly." wouldn't fly. Thankfully, scientists are a bit more rigourous in their thinking (hopefully).

    Also, FYI, the ability to float does not have anything to do with the size or mass of the object, only its displacement. Anything will float as long as it weighs less than the matter it displaces.

    Positive buoyancy = floaty
    Negative buoyancy = sinky
    Neutral buoyancy = balanced between being floaty and sinky

    That is why battleships float. Oil tankers float. Aircraft carriers float. Submarines float (even when they are underwater they're floating, just not on the surface).

    ---anactofgod---

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    ---anactofgod---

    "Equal opportunity swindling - *that* is the true test of a sustainable democracy."
  16. Re:Shouldn't be suprising??? by pmz · · Score: 1

    So your logical argument of "it's advantageous, therefor it's obviously true" is false.

    You are injecting words into my post. I never said it is "obviously true". I said that we shouldn't be suprised, because it is so common that so many modern animals do, in fact, float.

  17. I can't float by Anonymous Coward · · Score: 0

    At 6'3", 170lbs, my body fat is low enough that even with fully inflated lungs, I slowly sink to the bottom of a swimming pool. Made swimming lessons extra tough, 'cause I could never pass the "front float" and "back float" parts of the tests :(

  18. more remarkable science by zejackal · · Score: 0

    Wow, an animal made mostly of water with a big airsack in the middle of it can float... no freakin' way.

    This is just like the article I just read that talked about how scientists recently discovered that fish can feel pain, and how this discovery has caused some to question the humaneness of angling.

    Hello, of course they freakin' feel pain, how else do they know they've been injured. A machine feels no pain, if a joint breaks, or a rivet comes loose it keeps working... often to it's own destruction. Animals however can't afford to bash themselves to death when injured, they have to know they are injured to adapt their behaviour to improve their chances of survival.

    I swear all of these scientists talking about anthropomorphism have got it all wrong. We shouldn't be trying to prove how other organisms are like us, but how we are any different from the rest of the natural world. They assume that the human race is somehow different, seperated from the rest of nature. They say, prove that animals think and have feelings... prove that fish feel pain. What a waste of time. Prove to me that you feel pain. I dare you to come up with a convincing proof that you feel pain. Hell, prove that you even think.

    I'd like to coin a new term anthro-isolationism. It means the attitude that humankind is somehow detatched from nature, somehow above it. That's the predominant menatality in the scientific community.

    I can't believe that someone bothered to prove that fish feel pain.

    Am I the only one who thinks that the ideas that dinosaurs floated and that fish feel pain don't need proving until every other freakin' fact and idea has been worked to death?

    1. Re:more remarkable science by khamar · · Score: 1

      If I could only point-up this post! Well said. We should be so arrogant to generalize the behavior of other species (even modern ones.) Today, we understand that even in the population of the common fly the variety of food and habitat varies from salt marsh to cow dung. Some flies even swim and harvest algae from wet sand. Flies exist that do not have wings but walk instead. In some twisted way we find that an animal that can float must be interesting just because is lived a long time ago. What is odd here is our thinking process not the animals we study.

      --
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  19. No shit by Anonymous Coward · · Score: 0

    How else did they get off of The Island before Speilbergs flare sized ego took over? duh.