Quote:
Originally Posted by Legday
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Slim dinosaurs such as Compsognathus and Ornithomimus were among the fastest dinosaurs. However, the cheetah can run faster than any dinosaur that existed. Some scientists believe that Tyrannosaurus rex may have been able to run as fast as 18 mph (28 km/h). Other scientists believe it could not run at all because it was so big.
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Legday = amateur paleontologist