Why did Tyrannosaurus have small arms?

Discussion in 'General Discussion' started by DinoFreakUSA, Aug 23, 2011.

  1. DinoFreakUSA

    DinoFreakUSA Well-Known Member

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    For years paleontologist have thought that Tyrannosaurus arms were small to compinsate for its gigantic skull. Its ancestors had long arms and it was thought that the arms shrunk throughout its evolution as it grew larger. However the recent discovery of Raptorex has challenged this theory. It evolved millions of years before Tyrannosaurus and had a realitivley small head but its arms were very tiny compared to its body size. If the "shrank as they gre" theory was correct and since the arms of Raptorex were so small then the arms would have been gone long before Tyrannosaurus came around. Why do you think Tyrannosaurus has susch small arms?
     
  2. TrueNomadSkies

    TrueNomadSkies Airachnid's ratservant

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    *insert penis joke*



    ... seriously though, there's always the whole "learned to stand on the hind legs" theory.
     
  3. x BlackMagnus x

    x BlackMagnus x Is not impressed

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    So a joke could be made in "Meet the Robinsons".:p 
     
    Last edited: Aug 23, 2011
  4. Tigertrack

    Tigertrack Back In The Game!

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    Can't reach it, can't play with it.
     
  5. Nachtsider

    Nachtsider Banned

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    It was an evolutionary mechanism to prevent masturbation, thus ensuring actual mating and thus increased propagation of the species.
     
  6. Sinnertwin

    Sinnertwin Banned

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    5 posts in and this thread is gold. I love you guys.
     
  7. EvaUnit13

    EvaUnit13 REBUILD

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    solid responses so far.
     
  8. Red Alert

    Red Alert Security

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    Can't masturbate = pissed off at everything and eats them.

    See Velocoraptor and Spinosaurus
     
  9. Cobalt Agent

    Cobalt Agent My dick kills dinosaurs

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    Didn't spinosaurus eat fish?

    -_-'
     
  10. starscream-99

    starscream-99 Well-Known Member

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    Ask Dr. Allen Grant.
     
  11. Cobalt Agent

    Cobalt Agent My dick kills dinosaurs

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    The one where a Spinosaurus beat a T-Rex? Sure.
     
  12. Tyrannosaur

    Tyrannosaur 100% Sarcastic Saurian

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    You're all wrong. Didn't you people learn this in school?

    [​IMG]

    (Yes I know, there are stegosauruses (Stegosauri?) in this pic.)


    From what I've read in my book on Tyrannosaurus, the small arms were to compensate for it's massive head. Why have big arms when you have a head the size of a refrigerator filled with fifty or more 6" teeth that could crush through bone with a force of more than 10,000 psi?
     
  13. Enigma2K2

    Enigma2K2 Robot In Disguise TFW2005 Supporter

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    Because God is a beautiful bastard with a wicked sense of humor...
     
  14. Autobot Burnout

    Autobot Burnout Hammer of the Gunplas

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    They were small so that lesser animals would point and laugh at the big dinosaur with the tiny arms.

    It was during the laughing that the T-Rex took advantage of his speed and giant jaws to then bite into the immobilized prey, unable to move because they were laughing so hard at what they thought was an evolutionary joke.

    I thought the big head/tiny arms joke was from "Meet the Robinsons"? I don't recall there being anything about a T-rex having small arms in The Incredibles.
     
  15. Bumblethumper

    Bumblethumper old misery guts

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    Incidentallyl, Raptorex is the subject of controversy, in terms of its age, and therefore its evolutionary significance. Since the fossil came through the hands of fossil dealers, it's provenance is questionable. It may not be as old as initially claimed and may instead be a juvenile of Tarbosaurus, the closely-related asian variant of Tyrannosaurus.

    As for Tyrannosaurus itself, I imagine the arms were mostly vestigial. I doubt they served any particularly vital function.
     
  16. Crazy Ramjetty

    Crazy Ramjetty marvel's got it good

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    I think they were used as pegs to lock in on it's prey once it was down so it couldn't get away easily
     
  17. x BlackMagnus x

    x BlackMagnus x Is not impressed

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    Fixed.
    :dunce  You are absolutely right sir. Shame on the rest of you who didn't catch it sooner :lol 

     
    Last edited by a moderator: Sep 12, 2016
  18. Aernaroth

    Aernaroth <b><font color=blue>I voted for Super_Megatron and Veteran

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    Do you seriously need big arms when your jaw is a huge steak knife drawer?
     
  19. TrueNomadSkies

    TrueNomadSkies Airachnid's ratservant

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    Would you?
     
  20. UnicronFTW

    UnicronFTW Don't blink.

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    Well, you know what they say about big feet... whose to say "Small Arms" isn't the opposite? If you catch my drift.
     

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