1. Threatened Amphibians of the World ( Amazon )

2. Lost Animals: Extinction and the Photographic Record ( Amazon )

3. The Re-Origin of Species: A Second Chance for Extinct Animals ( Amazon )

4. In Danger: Portraits of Endangered Animals ( Amazon )

5. Bestiary: Evidence of Extinct Animal Species ( Amazon )

6. The Last of Their Kind: A Journey to the World's Ending Animals ( Amazon )

7. The Great Insect Die-off: What It Means and What We Must Do Now ( Amazon )