National Geographic Live! Groundbreaking new science is changing what we thought we knew about how dinosaurs looked, moved, and lived. Newfound troves from the Moroccan desert suggest that the immense predator Spinosaurus used crocodile-like jaws and a unique, paddle-like tail to actively pursue prey in the water: a first for dinosaurs. And in Chile, scientists have discovered a shocking new therapod. Unlike its cousins, Velociraptor and T. rex, Chilesaurus consumed a vegetarian diet. Join leading paleontologists Nizar Ibrahim and Sebastián Rozadilla for stories and conversation about the evolving science of dinosaurs.