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Old July 18th, 2017 #1
James Heimdal
Purveyor of Truth
 
Join Date: Jul 2017
Location: Dixie
Posts: 218
Default Fearsome T-rex was a plodder not a sprinter, researchers say

Quote:
...While the running ability of T-rex has been hotly debated among palaeontologists for decades, the consensus from previous biomechanical models was that the Cretaceous-era carnivore could manage speeds of up to 45 mph (75 kmh).

That's more than half as fast again as the quickest man in history.

But because of its size and weight, the predator would actually have broken its legs had it tried to break into a sprint, the University of Manchester research showed.

"The muscles need to be able to generate sufficient power to allow high-speed locomotion, but at the same time the skeleton has to be able to cope with the loads generated by the high speed," said Professor William Sellers from the university's School of Earth and Environmental Sciences

"...This is where it fails. T-rex's skeleton is simply not strong enough for running locomotion," he told Reuters...

...They concluded that T-rex was limited to walking speeds of about 5 metres/second, equating to 12 mph (18 kmh) -- less than half the speed of Usain Bolt's personal best of 27.8 mph... More
 
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