Ever wondered why the dinosaurs didn't survive? In this fascinating non-chronological report the success story of crocodiles and lizards (focusing on monitor lizards), and some of the reasons why they have survived since the time of the dinosaurs is explored. * Purple/ Band 8 books offer developing readers literary language, with some challenging vocabulary. * Text type — A non-chronological report. * The book includes a contents page on page 1, plus a glossary and index on pages 20 and 21. * A fact chart on pages 22 and 23 summarises the distinguishing aspects of each of crocodiles and monitor lizards. * Curriculum links — Science: Humans and other animals. * This book has been levelled for Reading Recovery.