At first glance, dinosaurs seem like the product of a wild imagination--how could such weird and wonderful creatures ever have existed on our Earth? Before the extinction event that changed their world forever, dinosaurs and their reptilian relatives of the sea and sky ruled the prehistoric world. From Allosaurus to Zuniceratops, travel back in time to the age of the dinosaurs with The Worlds Most Amazing Dinosaurs and discover these "terrible lizards" for yourself. We've gathered together some of the most amazing creatures and got right under their skin so we can demonstrate to you how they worked. Did Velociraptors hunt in packs? Why did herbivores grow so massive? Find out how the dinosaurs survived and thrived, about the mass extinction event that ended it all, and what these ancient creatures left behind for us to find.