Tyrannosaurus rex was a mean dinosaur hunting machine - right? Well, not all palaeontologists believe that. In fact some of them, including Jack Horner who was an adviser for the film Jurassic Park, believe that T. rex was nothing more than a scavenger... http://westerndigs.blogspot.com.au/2013/07/t-rex-tooth-found-in-dinosaurs-tail.html http://www.nature.com/news/tyrannosaurus-rex-hunted-for-live-prey-1.13381 http://www.nbcnews.com/science/crunch-t-rex-tooth-found-dino-tailbone-6C10640610
❛Nizar Ibrahim❜ TEDYouth 2014: How we unearthed the spinosaurus • "A 50-foot-long carnivore who hunted its prey in rivers 97 million years ago, the spinosaurus is a 'dragon from deep time.' Paleontologist Nizar Ibrahim and his crew found new fossils, hidden in cliffs of the Moroccan Sahara desert, that are helping us learn more about the first swimming dinosaur — who might also be the largest carnivorous dinosaur of all."