Tyrannosaurus rex was physically incapable of running because of its size and weight, and would have broken its legs had it tried to break into a sprint, according to new research. Matthew Stock reports.
Tyrannosaurus rex is considered one of the most fearsome creatures to ever walk the earth. But it turns out 'walking' is all it could manage. Researchers from the University of Manchester say this new computer model proves T-rex was physically incapable of running because of its size and weight. They go as far to say it would have broken its legs had it tried to break into a sprint. T-rex, they say, was limited to walking speeds of about 5 metres-per-second, equating to nearly 12 mph. By comparison, the fastest man on earth, Usain Bolt, has recorded a top speed of more than 27 miles-per-hour. Published in the journal PeerJ, researchers say this is the most accurate simulation so far of T-rex's gait and biomechanics. It forces a re-think on how this supposedly ferocious carnivore caught its prey. One thing is certain, though. In a flat race Bolt wouldn't have been on the menu.