Everything you have yet to know about... dinosaurs!

Did you know that the very first dinosaur, the Herrerasaurus, was as tall as a man? That even though the Velociraptor was no bigger than a turkey, its bite was as powerful as a lion's? That mammals existed long before the dinosaurs went extinct, but they lived at night to avoid encountering them? That 70% of dinosaur species are still unknown? Dive in and discover 200 facts about these great beasts!