Dinosaurs: Jurassic Smarts

Everybody knows the Brontosaurs, but what about the Mamenchisaurus? The third chapter in the Dinosaurs saga delves deeper into the world of these fearsome lizards, exploring rarely discussed creatures like the Cryolophosaurus, taking a look at the spines of the Stegosaurus, and asking important questions like "What happened when a dinosaur had a toothache?