Finally, Currie's discoveries are beginning to convince others.On the basis of these new discoveries, we're beginning to have to shape and change our ideas on how large predators behaved.If they're operating as a group, if they're operating as a pack,a group of Giganotosaurus, for example, might have been able to mob even a big Argentinosaurus - something no one suspected before.But for Phil Currie, this idea was more than a suspicion.It made perfect sense to him that the giant South American meat-eaters preyed upon the long-necks.He was convinced by their teeth.The teeth of the new animal are better adapted for going after really big dinosaurs, like the long-necked plant-eaters that lived in that region.Because if you look at the teeth, the teeth are very blade-like.They have serrations down the front and the back, and the teeth themselves are very narrow and knife-like.This is a slicing tooth, this is to designed to cut through meat.So this new form could bite and slice out big chunks of flesh.Long-necks Argentinosaurus had massive bones, impossible to crunch through.So the giant South American carnivores didn't even try.Instead, Currie believes they used their thin steak-knife teeth to strip flesh from around the enormous bones.
