The Science of Living Things series helps children understand that they are as connected to trees， rocks， and weather as the animals that live outdoors This important series helps define the basic concept of life and investigates the incredible world of living things. Each book explores a basic scientific concept or animal using： -- easy-to-understand text-- clearly labeled diagrams-- exciting， full-color photographsIn What is a Dinosaur? kids of all ages will be enthralled by these ancient reptiles who ruled the earth for almost 180 million years Striking， full-color illustrations highlight some of the most interesting and well-known of the more than 800 species of dinosaurs. Readers will learn about： -- the study of fossils-- the different types of dinosaur bodies-- feeding and hunting habits-- nests and eggs-- the various theories about their extinction-- what is and is not a dinosaur