Sorry, Jurassic Park fans: New research says the T. rex actually couldn't run

It turns out those Tyrannosaurus Rex chase scenes inJurassic Park may not be so realistic after all.  We hate to break it to you but: the famed dinosaur couldn't run, according to new research from Manchester University. In other words, everything you thought you knew about the T. rex chasing down its prey could be wrong.  The study, which used multi-body dynamic analysis and skeletal stress analysis — two bio-mechanical techniques — found that the T. rex's legs wouldn't ha