It does this through two large tail muscles—the caudofemoral muscles—that pull the legs backwards during each step. To calculate how the tail propelled the T.
The paleontologists found that the ligaments stretched to create the vertical bounce and held the dinosaur's suspended tail in a way that did not use up extra energy. The T. Researchers combined the tails swaying rhythm with an estimated step length obtained from another T. Plenty of people have wondered just how fast a Tyrannosaurus rex could run.
But that might be the wrong question. People should have been asking if this fearsome dinosaur was able to run at all. Yet this creature could obviously outrace its prey. And scientists now say that if it were alive today, T. William Sellers is a vertebrate paleontologist at the University of Manchester in England. His team described its new findings online July 17 in PeerJ. Past studies have used several methods to try to estimate the speed of a T.
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No doubt, T. But was it really that fast? When Jurassic Park was released in , the idea of a turbo-charged T. Some scientists argued that big meat-eaters like T. What the moviemakers probably never realized, however, was that there was little evidence that T.
After all, T. So how could we possibly know how fast it was? In the early s, right around the time Jurassic Park III made its inglorious debut in theaters, John Hutchinson made the first serious attempt to study the locomotory behaviors of T. Hutchinson used computer models—then a novel technique for paleontologists—to show that T.
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