When did dinosaurs roam the earth? How are dinosaur bones put together? What are fossils, and how do they teach us about the prehistoric world? The Do You Know?™ books provide an in-depth look at a wide range of popular subjects. Appealing to children who want to know everything, each thought-provoking book features • 96 pages filled with informative content and answers to many popular questions • Hundreds of labeled illustrations • An index to key terms • And a "More to Know" section that motivates children to explore further Fans of the Do You Know™ series will also enjoy Do You Know: Oceans and Marine Life. • Great family and classroom read-aloud book • Educational books for kids ages 5 to 8 An indispensable resource for any child's library!