Could You Outrun a Hungry Tyrannosaur?
One question has always burned in the minds of paleontologists: If Tyrannosaurus rex was still around today, would it be able to catch and eat you?
The problem stems from our ability to accurately reconstruct the speed of extinct animals when all you have to go off are their bones. Trying to figure out where all the muscles went and the forces exerted by them during sprints, especially with dinosaurs, is no easy task.
http://blogs.discovermagazine.com/d-.../#.Vq9jisv2Z9D