Table of Contents:
- Front Cover
- Half Title Page
- Frontispiece
- Title Page
- Copyright Page
- Contents
- Steps in Life
- Changing Earth
- Signs of Life
- Life in Abundance
- Hard Covers
- The Inside Story
- Sea Monsters
- Taking Root on Land
- First Four Feet
- Forest Swamps
- Reptiles Reign
- Reptiles Like Mammals
- The Age of the Dinosaurs
- Saurischians
- Ornithischians
- Reptiles at Sea
- Flying Reptiles
- Early Birds
- Mammals Take Over
- Mammal Variety
- Elephants and Horses
- Mammal Islands
- Birth and Growth
- Apes and Ancestors
- Early Humans
- Ice Ages
- Extinction
- Fossil Finders
- Tree of Life
- Diversity of Life
- Earth over Time
- Glossary
- Index
- Acknowledgments