Amazing new discoveries in South America are revolutionising what we thought we knew about the dinosaur world. It now seems that South America was home to both the largest meat-eater – so new it’s still without a name – and the largest herbivore – the enormous long-necked Argentinasaurus. And what’s more, these dinosaurs lived at the same time in the same place. So it’s possible that like in a science fiction movie, in this prehistoric world these two giants of their kind fought each other in a spectacular clash of the Titans.