Friday, 4 August 2017

Mighty T. rex 'walked rather than sprinted'


By Helen BriggsBBC News
18 July 2017

The size and weight of a T. rex would have prevented it from moving faster than 20km/h (12mph), research suggests.

University of Manchester scientists used a new computer simulation to assess the speed of the massive biped.

Based on T. rex's muscles alone, the model came up with a maximum speed of 30km/h, but this dropped to 20km/h when skeletal strength was assessed too.

Had it moved from a brisk walk to a sprint, the dinosaur's legs would have snapped under the weight of its body.

"T. rex is everyone's favourite dinosaur, and palaeontologists have been arguing for years about how fast it could run because this would tell us something about its hunting style and the way it caught its prey,'' said Prof William Sellers.

''This project used a highly realistic computer simulation to predict how T. rex moved, and it shows that running would have been impossible because its skeleton just isn't strong enough.





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