Nature never ceases to amaze us, especially in the animal kingdom! In this book, children will be able to follow the adventures of an intrepid explorer through his researches, which have brought him face to face with some of the most bizarre and extinct animals in the world. Young readers will discover that our planet was once inhabited by armadillos the size of a car, rhinoceroses without horns as tall as a giraffe and elephants no bigger than a sheep. A voyage through time for children to discover curious things about our planet and how it has changed over the years causing the extinction of many animals, reading fascinating information. The protagonist of this book, our intrepid explorer, will lead children in discovery of wonderful extinct animals.