Welcome to Pennsylvania
Getting greener
Stepping into the future
Appendix I: Time line of life on earth
Appendix II: Chart to help keep the vertebrates straight
Where to learn more
Pronunciation guide
Glossary
Index
Author's sources.
When fish got feet, sharks got teeth, and bugs began to swarm : a cartoon prehistory of life long before dinosaurs by Hannah Bonner. ISBN 9781426300783. Published by National Geographic in 2007. Publication and catalogue information, links to buy online and reader comments.