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Thread: T. rex was a chicken

  1. #1 T. rex was a chicken 
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    /translated from norwegian magazine article:

    soft tissue from a thighbone reveals the dinosaurs closest relative

    when paleontologist Mary H. Schwitzer in march 2005 discovered that a 68 million year old bone from a T. rex still contained soft tissue, it sent shock-waves through scientific communities around the world.
    she also assumed that the tissue contained proteins that could reveal which animal living today is T. rex closest relative.
    13th of april 2007 she and her colleagues showed that they were right.
    After 2 years of hard work, the scientists had managed to isolate the proteins from the bones soft tissue. with the help of a new and advanced method they split the proteins into amino-acids. and the unique combination of amino-acids in the protein from the thighbone revealed that the T. rex closest relative living today is actually the domestic chicken.
    the job of isolating the proteine in the 68 million year old bones was a giant challenge, because of times merciless destruction of the bones,
    even though the bones were well preserved, there were only small traces of soft tissue left, and of this, even less amounts of protein.
    but the scientists were succsessful in decoding the proteine in the bone, and the new discovery supports many paleontologists who's opinion is that birds originally descended from dinosaurs.


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    Forum Bachelors Degree Demen Tolden's Avatar
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    OMG That is so funny. I instantly thought of this:

    http://www.youtube.com/watch?v=XcxKIJTb3Hg

    A rabbit that had a dormant trait manifest itself into a vicous killer.


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    I know that this is going to sound a tad stupid, but is it possible that chickens still carry some T-Rex personality traits? As a kid we kept chickens as well as many other animals at home, they are the only animals that i have ever known not to trust you, even after many years, they don't even get on with each other. Anyway just a thought.
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  5. #4  
    Administrator KALSTER's Avatar
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    could'nt it be that the tissue that was discovered, was actually chicken tissue, planted there?
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  6. #5  
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    well, way back when, i used to draw a lot of dinosaurs.
    it was during my 3rd year on school, in easter.
    wheh, that brought back a few memories.
    bad ones too.
    oh well, anyways, we were supposed to draw something with an easter theme.
    so i decided to draw chicks.
    i had seen pictures of chicks, and remembered they had cool looking legs.
    so i drew chicks with realistic legs, but when the other kids saw that, they started complaining.
    you know what they said?
    "why did you put dinosaur feet on those chicks?"
    at the time, i didn't know what to say, because i didn't know about the debate of whether dinosaurs closest living relatives today was birds.
    but well, yeah, something to think about.
    oh and a picture to say more than a thousand words.

    just look at those scaly dinosaur legs ya'll..
    when you have eliminated the impossible, whatever remains, however improbable, must be the truth
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  7. #6  
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    more detailed article:

    http://www.guardian.co.uk/science/20...knews.taxonomy

    sequences that matched:
    3 out of 7 matched chicken uniquely,
    1 out of 7 matched frogs,
    1 out of 7 matched newts,
    and the rest was a combination of the 3 above.
    when you have eliminated the impossible, whatever remains, however improbable, must be the truth
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  9. #8  
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    hmm, all dromaeosaurids had feathers apparently.
    when you have eliminated the impossible, whatever remains, however improbable, must be the truth
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  10. #9  
    Forum Cosmic Wizard paralith's Avatar
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    Quote Originally Posted by KALSTER
    could'nt it be that the tissue that was discovered, was actually chicken tissue, planted there?
    Unlikely. If I remember correctly, the bone had just been excavated from a hillside, and they were carrying it to a helicopter when they dropped it, and the previously whole and intact bone broke open - whereupon they discovered the tissue.
    Man can will nothing unless he has first understood that he must count on no one but himself; that he is alone, abandoned on earth in the midst of his infinite responsibilities, without help, with no other aim than the one he sets himself, with no other destiny than the one he forges for himself on this earth.
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  11. #10  
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    Quote Originally Posted by paralith
    Quote Originally Posted by KALSTER
    could'nt it be that the tissue that was discovered, was actually chicken tissue, planted there?
    unlikely. If I remember correctly, the bone had just been excavated from a hillside, and they were carrying it to a helicopter when they dropped it, and the previously whole and intact bone broke open - whereupon they discovered the tissue.
    In addition, if it was chicken tissue than it would give an exact match with chicken tissue, not a partial match.
    What I find more interesting is the mindest that would lead you to ask that question, Kastler. Care to expound?
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  12. #11  
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    just curious. isn't it a bit meraculous that tissue survived for 64 my? or is it only compnent protiens and such? i gather no dna survived
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  13. #12  
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    I wouldn't call it miraculous. Unexpected. Surprising. Fortuitious. Yes, but not miraculous.
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  14. #13  
    Forum Cosmic Wizard paralith's Avatar
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    and yes, it was just proteins - a few strings of amino acids. Definitely no DNA.
    Man can will nothing unless he has first understood that he must count on no one but himself; that he is alone, abandoned on earth in the midst of his infinite responsibilities, without help, with no other aim than the one he sets himself, with no other destiny than the one he forges for himself on this earth.
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  15. #14  
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    in was just thinking that, as far as i know, fossils are usually not made up of the original material and are replaced by other minerals. and i thought that proteins denature quite easily because of temprature and ph variations, but i guess that does not go for amino acids? this leg bone that was discovered, was it sort of mummified and isolated to be able to survive for 65 my?

    another question, i know that birds have the same hip structure than dinosaurs and different to modern lizzards. are there any other simularities?

    i'm not contesting the idea of birds evolving from dinosaurs that survived the asteroid, i'm interested in the evidence
    Disclaimer: I do not declare myself to be an expert on ANY subject. If I state something as fact that is obviously wrong, please don't hesitate to correct me. I welcome such corrections in an attempt to be as truthful and accurate as possible.

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  16. #15  
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    Quote Originally Posted by KALSTER
    in was just thinking that, as far as i know, fossils are usually not made up of the original material and are replaced by other minerals.
    You are absolutely correct. However, because such is the norm, scientists do not typically go looking for soft tissues. If you are not looking for something it is generally harder to find it. It is arguable that it is only within a bone that such material has any hope of surviving.

    Note, as paralith pointed out, the material was identified because the bone was broken by accident. There may be a vast amount of such material sitting within bones in many collections around the world. If the bone had been broken deliberately, to facilitate removal of the skeleton, then it would have been treated with preservatives that would have contaminated the material. This discovery was a combination of blind luck and astute observation. I expect to hear of further reports in the next few years as investigators look for such material.
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  17. #16  
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    ok, thanks for the explanation. now another thing, i know this might be pure fiction (jurassic park) but is it possible to find at least parts of dna in amber with a mosquito in it? do the enzymes the mosquito secretes to make the blood thinner and stop it from clotting, destroy dna?
    Disclaimer: I do not declare myself to be an expert on ANY subject. If I state something as fact that is obviously wrong, please don't hesitate to correct me. I welcome such corrections in an attempt to be as truthful and accurate as possible.

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  18. #17  
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    Quote Originally Posted by KALSTER
    ok, thanks for the explanation. now another thing, i know this might be pure fiction (jurassic park) but is it possible to find at least parts of dna in amber with a mosquito in it? do the enzymes the mosquito secretes to make the blood thinner and stop it from clotting, destroy dna?
    I wouldn't rule it out, but I think the consensus amongst experts is that it would be impossible. Remember also that red blood cells (at least mammalian ones) do not contain any nucleus, so no DNA.
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  19. #18  
    Forum Cosmic Wizard spuriousmonkey's Avatar
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    Jurassic park wouldn't work anyway. Would would want to look at a velociraptor if it looks like a chicken?
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  20. #19  
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    Yet another thing. What are evolution biologists' explanation for the evolution spurts that happened at the border between the eras/ages/periods? the absence of fossils of bridging species is i think 'cause there were relatively fewer animals to become fossils. no hand of god there. but what caused them? maybe an evolution gene? or a sporadic solar cycle yet to be identified that caused more mutations than usual? is there an accepted theory for it yet?
    Disclaimer: I do not declare myself to be an expert on ANY subject. If I state something as fact that is obviously wrong, please don't hesitate to correct me. I welcome such corrections in an attempt to be as truthful and accurate as possible.

    "Gullibility kills" - Carl Sagan
    "All people know the same truth. Our lives consist of how we chose to distort it." - Harry Block
    "It is the mark of an educated mind to be able to entertain a thought without accepting it." - Aristotle
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  21. #20  
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    Quote Originally Posted by KALSTER
    Yet another thing. What are evolution biologists' explanation for the evolution spurts that happened at the border between the eras/ages/periods? the absence of fossils of bridging species is i think 'cause there were relatively fewer animals to become fossils. no hand of god there. but what caused them? maybe an evolution gene? or a sporadic solar cycle yet to be identified that caused more mutations than usual? is there an accepted theory for it yet?
    Environmental changes. Large abrupt changes in the environment initiate and facilitate major new evolutionary changes. Additionally the depletion of existing species opens up niches to new developments.
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