Tyrannosaurus, King of the Dinosaurs (When Dinosaurs Ruled the Earth)

Tyrannosaurus was a fearsome hunter with strong back legs, powerful jaws, and rows of dagger-like teeth. It was, however, just one dinosaur among many. This title also includes Vulcanodon, a big plant-eater with a whip-like tail; heavily armored Sauropelta; horned Pentaceratops; Kentrosaurus with plates and spikes; and tiny, feathered Avimimus.