A rhyming, read-aloud introduction to dinosaurs and early life on our planet that, when opened up and folded back, creates a free-standing globe This exciting addition to the bestselling Our World collection invites children to explore life on our prehistoric planet through rhyming verse and stunning illustrations. Beginning with the origins of early life in the oceans billions of years ago, Our Prehistoric Planet travels chronologically through the development of giant crocodile-like lizards, the reign of the dinosaurs, mass extinction events, and the rise of early mammals.