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Roared dinosaurs would really like the movie?
Time:27-07-2016  Hits:3

     

Roared dinosaurs would really like the movie?

 

It was 65 million years ago, you are walking through the forest, when you hear the thundering sound stamp from a far, you knew you had to run quickly, but the drumbeat is also constantly growing.Fishermans when you run through the forest when looking back, a tyrannosaurus rex appeared from behind the trees, and issue a creepy - goo goo.This is published in the journal "Evolution" (Evolution) of a new institute found.


Researchers through the analysis we know with living dinosaurs closest creatures known as archosaurs (birds and crocodiles), draws the conclusion.They analyzed the origins and evolution of archosaur pronunciation organs and archosaur will have huge sound.The researchers then the associated with the collected dinosaur sounds found that in comparison with the data of birds have a special way of sound, known as the silent voice.The sound is produced through the birds neck skin, beak is closed at this time.
"Watch silent voices in the existing distribution of birds can tell us how dinosaurs voice," the study co-author ChadEliason said in a news conference.It is interesting to note that only the larger size of the animal (pigeons size or larger) use the silent voice.Said the studys lead author TobiasRiede, silent voice was appeared in the larger size is related to physics.


Riede said, a kind of elastic cavity expansion will present one size dependence.Swell to the size of the cavity pulmonary pressure depends on the chamber wall tension, and the tension is decreased with the increase of size.The researchers found that the silent voice appears in a variety of archosaur species.


Though it is difficult to rebuild extinct dinosaur voice (dinosaur of the vocal organs do not like their bones become fossils), but the researchers according to some

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