Presents facts about the prehistoric world in which dinosaurs lived, the types of dinosaurs that lived in different time periods, and how dinosaur bones are discovered and studied.

What was the age of the dinosaurs? -- The prehistoric world -- The first dinosaurs -- The Jurassic world -- Rulers of the world -- Here comes T. rex! -- Dinosaurs babies -- Wiped out -- Finding the bones -- The bone wars -- Secrets in the bones -- Are dinosaurs really extinct? -- Timelines.