What did your guinea pig's great-great-great-great-great-grandparents look like? Paleontologist Dr. Dean Lomax takes a close look at seven of our favorite pets and uses fossil clues to reveal who their prehistoric ancestors might be. Incredible pop-ups bring you face-to-face with awesome ancient creatures, including a velociraptor, a saber-toothed cat, and the giant snake Titanoboa. This book is packed full of fun facts about amazing animals and fascinating fossils.