Paleontology have found that using the ridges on their heads duckbill dinosaurs (gadrozavry) was published by the low sounds. This tells British newspaper Telegraph.
Gadrozavry reached a height of 10 meters and moved to rear paws. The front of their heads like a huge duck beak, which they used for percolation of water. On top of the head was a hollow crest, which connects with a bow sinus.
In his study, researchers collected data on the internal structure of the comb with the help of computer tomography. Using special software researchers has been able to establish that with an intensive air passing through the crest arisen low humming sound. Further analysis of the structure of the inner ear gadrozavrov (again with the help of computer tomography) revealed that duckbill dinosaurs well have heard it is low frequencies.
According to scientists, the new results clearly indicate that using the sounds produced by comb, gadrozavry talking. Earlier, there were several hypotheses about the possible appointment of the comb. In particular, it was assumed that he could participate in the sense of smell.
суббота, 18 октября 2008 г.
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