If you read about dinosaurs as a child, watched Jurassic World and now think you know everything about them, there are many surprises in store for you in this book. Beginning with the description of Megalosaurus in the 19th century. and ending with the 2017 discoveries, scientists Darren Naish and Paul Barrett talk about what paleontologists know about these animals today, and how computer simulations, tomography and other new technologies are helping scientists learn even more. A story spanning 150 million years will unfold before you, from the first cat-sized creatures to the Tyrannosaurus Rex and on to modern hawks and hummingbirds. How dinosaurs appeared, how they behaved, how they reproduced, how they hunted and defended themselves from predators. And finally, why did they die out. But not all died out: after all, birds are actually dinosaurs too, which means that these amazing animals are still with us. The book will be of interest to both adults and young dinosaur lovers.