When the Whales Walked: And Other Incredible Evolutionary Journeys

Step back in time and discover a world where whales once walked, crocodiles were warm-blooded, and snakes had legs! Meet terrifying giant birds, and tiny elephants living on islands in this . Learn how whales once walked on four legs before taking to the oceans; how dinosaurs evolved into birds; and how the first cats were small and lived in trees. Featuring a stunning mix of annotated illustrations, illustrated scenes, and family trees, that  will make children look at animals in a whole new way.