| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Belize: Reefs, Rain Forests, and Mayan Ruins | 978-0-931625-42-8 | 2005 | |
| Hidden Amazon: The Greatest Voyage in Natural History | 978-0-931625-33-6 | 1999 | Richard L. Lutz |
| Komodo: The Living Dragon | 978-0-931625-27-5 | 1996 | Judy Marie Lutz |
| Patagonia: At the Bottom of the World | 978-0-931625-38-1 | 2002 | |
| Tuatara: A Living Fossil | 978-0-931625-43-5 | 2005 | |