The prehistoric world -- How the Earth began -- Under the sea -- LIfe on the land -- Swampy forests -- The first reptiles -- The first dinosaurs -- Hunter dinosaurs -- Raptors -- The first birds -- Tyrannosaurus rex -- Giant dinosaurs -- Duck-billed dinosaurs -- Horned dinosaurs -- Stegosaurs -- Boneheads -- Spiky dinosaurs -- Baby dinosaurs -- Sea reptiles -- Flying reptiles -- The death of the dinosaurs -- The first mammals -- More mammals -- South American mammals -- Ice age mammals -- The first people -- How do we know? -- New discoveries -- Prehistoric facts and figures -- Prehistoric words.