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Some Dinosaurs Made Underground Dens

anthemaniac writes "Scientists have long puzzled over how some dinosaurs and other creatures survived the asteroid impact that supposedly caused the KT mass extinction 65 million years ago and wiped out all the big dinosaurs. One idea has been that smaller animals, including mammals, could have endured the fallout, the big chill, the subsequent volcanoes, and whatever else by burrowing. Now scientists have come up with the first evidence of burrowing dinosaurs. They speculate that underground dens might explain how some dinosaurs got through long, dark winters at high latitudes, too."

26 of 124 comments (clear)

  1. Correction by Wonko+the+Sane · · Score: 5, Funny

    The fake dinosaur bones that god put in the ground to test our faith were positioned in a what was made to appear as an underground burrow.

    This all happened sometime last week.

    1. Re:Correction by Anonymous Coward · · Score: 2, Funny

      Good bonings, and unfortunately bad bonings as well, have tested the faith of many. People experiencing these have been known to call out to God. Many that occur have been related to underground movements and many people and organizations just try to keep knowledge of such things buried, especially in relation to the bad bonings.

    2. Re:Correction by Wavicle · · Score: 4, Funny

      Yeah I was wondering how those dens saved them from drowning.

      (That was sarcasm. This is a note for the sarcasm impaired.)

      --
      Education is a better safeguard of liberty than a standing army.
      Edward Everett (1794 - 1865)
    3. Re:Correction by gardyloo · · Score: 4, Funny

      So you're saying that sometimes, "Noah!" just means "Noah" ?

    4. Re:Correction by Anonymous Coward · · Score: 4, Insightful

      man, the repetativeness of religion bashing and jokes about chairs and a certain microsoft executive make beavis and butthead look like a thinking mans comedy around here.
       
      seriously guys, it's getting old. if you can't find something more original to pull out of your ass either you're twice as dumb as they are or they're right.

    5. Re:Correction by Tatisimo · · Score: 3, Funny

      Actually, this article proves that a few thousand years ago (and maybe even now) dinosaurs were burrowing themselves so deep that it looks like they lived millions of years ago. You should now speak for god name in vain unless you do your "research", have received "holy enlightment" or been huffing kittens.

      --
      Give Kashyyyk back to the Wookies
  2. Welllllll by Spazntwich · · Score: 5, Funny

    if the dinosaurs were so smart, how come they're dead?

    1. Re:Welllllll by Walt+Dismal · · Score: 4, Funny
      if the dinosaurs were so smart, how come they're dead?

      Because they did extensive file sharing, and the RIAA sued them out of existence.

    2. Re:Welllllll by drawfour · · Score: 5, Funny

      they probably just typed in comments on slashdot and watched porn all day, so forgot to eat.
      Thanks for reminding me!
    3. Re:Welllllll by Anonymous Coward · · Score: 2, Funny

      why would you need a reminder to watch porn?

  3. Comparison to human-size by gardyloo · · Score: 3, Funny

    The images shown in the story are quite informative. Apparently, the http://images.livescience.com/images/070323_dino_s cale_02.jpg people's noses were much larger back then, too.

  4. Underground dinosaurs? by malevolentjelly · · Score: 5, Funny

    These burrowing dinosaurs must be from the species of Skeletal Dinosaurs we've found living underground for millions of years.

    SECRET TIP: Use bludgeoning weapons when fighting skeletal dinosaurs, they're resistant to piercing! ;)

  5. College students burrow too! by physicsphairy · · Score: 5, Funny

    When the great cataclysmic meteorite strikes, only those of us sequestered in basements playing WoW and hacking up patches to the Linux kernel will survive the impact. And, even more certainly, when the atmospheric plume of debris blocks out the sun, others will starve, and only we who subsist on inorganics such as cheetos and mountain dew will live to assert our genes in the remnant ecosystem.

    1. Re:College students burrow too! by Dunbal · · Score: 4, Funny

      only those of us sequestered in basements playing WoW and hacking up patches to the Linux kernel will survive the impact.

            An alternative path:

            Only to die miserably of internet withdrawal in a caffeine-induced continual attempt to reconnect to the servers...

      --
      Seven puppies were harmed during the making of this post.
  6. Fallout Shelters? by rubberchickenboy · · Score: 2, Funny

    So, did dinosaurs have to endure those irritating "Duck and Cover" films in school, too?

    1. Re:Fallout Shelters? by Savage-Rabbit · · Score: 3, Funny

      So, did dinosaurs have to endure those irritating "Duck and Cover" films in school, too? No, it was 'Run and Burrow'... if your had read TFA you would know that.
      --
      Only to idiots, are orders laws.
      -- Henning von Tresckow
  7. Re:On the evolutionary tree... by linguizic · · Score: 4, Informative

    Burrowing, like all behaviors, can't really be traced phylogenically for a couple of reasons:1.As this article shows us, it's hard to find evidence of behaviors that happened yesterday let alone millions of years ago (though under the right conditions burrowing does leave a trace, as the article shows), 2. Behaviors vary more wildly than the average allele. Though there is a large component of genetics at play with behavior, ultimately behaviors are products of the physiological phenotypes associated with said alleles and sensory input. Different environmental inputs yield different behavioral outputs for the same allele. Therefore there isn't an isomorphic relationship between genes and behavior. Behavioral traits tend to pop up independently of each other quite often, so it is impossible to say that there is one node on the evolutionary branch that "sprouted modern burrowing/hibernating reptiles and mammals".

    Granted this is coming from what I learned as an undergraduate so there are probably better people in the /. community to comment on this. (That's my way of saying: "Though I may sound like an expert, I very well may be full of crap and would love it if someone with more knowledge would fact check this post").

    --
    Does this sig remind you of Agatha Christie?
  8. What's so puzzling? by tompaulco · · Score: 2, Interesting

    I don't see why dinosaurs would have had to burrow to survive. I'm sure many dinosaurs died because they were close to the blast. But others were on the other side of the world. Global climate changed as a result of the impact, and most of the larger dinosaurs probably died of starvation. The smaller ones probably found enough to stay alive. Notably, most of the early mammals were also small.

    --
    If you are not allowed to question your government then the government has answered your question.
  9. Re:On the evolutionary tree... by TapeCutter · · Score: 2, Insightful

    "What you said makes no sense."

    True, but I think there is a good question underneath it: When did animals that "sleep" on a seasonal timetable diverge from animals that "sleep" on a daily timetable, or is an animals sleep pattern a recuring mutation in the wiring for the "sleep instinct" that is triggered by climate/daylight/resources/whatever?

    "Estivate?"

    I'm nearly 50 and would also have said "hibernate". You taught me a new word today, thanks.

    --
    And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
  10. Dinosaur extinction breaks my brain by robson · · Score: 2, Insightful

    *Why* were dinosaurs the ones to be wiped out completely?

    Mammals survived because they're small? There were small dinosaurs.

    Fish survived because they're water-dwelling? There were water-dwelling dinosaurs.

    Reptiles survived because...?!?

    I'm sure it's more complicated than this, and that's why I'm asking -- can someone help me understand? Why every dinosaur on the planet, regardless of habitat/diet/size died, while so many non-dinosaurs survived?

    1. Re:Dinosaur extinction breaks my brain by am+2k · · Score: 2, Interesting

      Actually, many scientists believe that dinosaurs evolved into what is now known as birds.

      You wouldn't find any of the mammals that lived back then in today's world, either.

    2. Re:Dinosaur extinction breaks my brain by orkysoft · · Score: 2, Insightful

      Dinosaurs is what we call the reptiles that went extinct about 65 million years ago.

      That should answer your question why all the dinosaurs went extinct. They're defined that way.

      --

      I suffer from attention surplus disorder.
    3. Re:Dinosaur extinction breaks my brain by robson · · Score: 2, Informative

      Dinosaurs is what we call the reptiles that went extinct about 65 million years ago.

      That should answer your question why all the dinosaurs went extinct. They're defined that way. Okay, riddle me this: Why did no reptile whose legs extended below the body ("dinosaur") rather than to the side ("lizard") survive, regardless of their scale, location, or diet?

      That aside, while researching a reply, I found something close to what I was looking for on Wikipedia (though the section is marked as needing citations):

      Possible patterns and trends

      Despite its overall severity, the K-T extinction was rather patchy. This raises the question of why some groups died out while others did not.

      There do seem to be some general trends:

      * Organisms which depended on photosynthesis became extinct or suffered heavy losses - from photosynthesing plankton (e.g. coccolithophorids) to land plants. And so did organisms whose food chain depended on photosynthesising organisms, e.g. tyrannosaurs (which ate vegetarian dinosaurs, which ate plants).
      * Organisms which built calcium carbonate shells became extinct or suffered heavy losses (coccolithophorids; many groups of molluscs, including ammonites, rudists, freshwater snails and mussels). And so did organisms whose food chain depended on these calcium carbonate shell builders. For example it is thought that ammonites were the principal food of mosasaurs.
      * Omnivores, insectivores and carrion-eaters appear to have survived quite well. It is worth noting that at the end of the Cretaceous there seem to have been no purely vegetarian or carnivorous mammals. Many mammals, and the birds which survived the extinction, fed on insects, larvae, worms, snails etc., which in turn fed on dead plant matter. So they survived the collapse of plant-based food chains because they lived in "detritus-based" food chains.
      * In stream communities few groups of animals became extinct. Stream communities tend to be less reliant on food from living plants and are more dependent on detritus that washes in from land. The stream communities may also have been buffered from extinction by their reliance on detritus-based food chains. (See Sheehan and Fastovsky, Geology, v. 20, p. 556-560.)
      * Similar, but more complex patterns have been found in the oceans. For example, animals living in the water column are almost entirely dependent on primary production from living phytoplankton. Many animals living on or in the ocean floor feed on detritus, or at least can switch to detritus feeding. Extinction was more severe among those animals living in the water column than among animals living on or in the sea floor.
      * No land animal larger than a cat survived.
      * The largest air-breathing survivors, crocodilians and champsosaurs, were semi-aquatic. Modern crocodilians can live as scavengers and can survive for as long as a year without a meal. And modern crocodilians' young are small, grow slowly and feed largely on invertebrates for their first few years - so they rely on a detritus-based food chain.
  11. I can believe that by zogger · · Score: 3, Insightful

    We have a small flock of what I now call the "cluckeraptors", because they certainly *act* like I imagine dinosaurs would act. I mean, they may be small and feathery and soft looking, but watch them run around the yard and interact with each other and you can see how utterly ruthless and focused they are. A few primary drives to them and not much else. For instance if one of them gets injured or the least bit "off" or ill, the others will be merciless with them, it's like they can't stand weakness and translate that to "food". Fascinating to watch really. Lean down close and look a rooster right in the eye, you can see the miniature power there. If they were say ten feet tall or larger, yes indeedy they would be serious nasty predators.

  12. More evidence... by Brad1138 · · Score: 2, Informative

    Now scientists have come up with the first evidence of burrowing dinosaurs. They speculate that underground dens might explain how some dinosaurs got through long, dark winters at high latitudes, too.

    I believe this proves it beyond a doubt.

    --
    If you could reason with religious people, there would be no religious people
  13. Dinosaurs by Christheclaw · · Score: 2, Insightful

    I find it odd that people get so angry when evolution is attacked. Science should be attacked so that science can be explored.I don't think that the fact that all things that exist in corralation to one another. Sand, water, air, creatures, plants, why are they in delicate balance>? Not to mention everything has a mathmatical base. And why do chemicals relate in solid, clear, reactions to one another? Why are there creatures that live in symbiotic relation with certain plants or parasites>? Why does everything although random still have a basic orderly base? Why do animals have genetic pools they come from, even though they vary, they still do not leave that pool, but instead point to a orgin of one set of animals. If evolution does exisit, that means man had to have had relations with a monkey in order to get more of the same species and a purifying of this to the human species we have now. In that case, that would mean that humans are but one of many apes and receding genes would have difinitive characteristics of true apes as the theory suggests. It was even shown on National Geographic that the origin of man has been traced to messopotamia. Believe in the existance of God or do not, science does not really clarify whether or not evolution is the answer. Species hopping seems so odd to me as a concept even after billions of years because you would see these traits no matter how remote in the genetic strain.As for a flood theory, there is evidence among world wide culture there was a flood. It would make sense if animals had procreated beyond their original set pool and variations had happened, then larger species for the most part would have died and climatic changes would have happened as well. Maybe not as we typically veiw a Biblical perspective but close enough. I veiw that slamming either side is rediculous. Look at science with an open mind and you get answers, there may be answers under your nose.