What did your Guinea pig's great great great great great grandparent look like? Palaeontologist Dr Dean Lomax takes a look at seven favourite pets and, using fossil clues, reveals their prehistoric animal ancestors. We take a close look at our pets, from guinea pigs to cats to horses, and - as if they were furry time machines - use fossil facts to trace them back to their prehistoric animal ancestors, with bright artwork, bags of humour and plenty of facts for readers to get their teeth into. Written by palaeontologist Dr Dean Lomax. Incredible pop-ups bring you face-to-face with awesome ancient creatures, including a Velociraptor, a sabre-tooth cat and the giant snake Titanoboa. Full of fun facts about amazing animals and fascinating fossils.