[en] [Gutenberg 8729] • The Dancing Mouse: A Study in Animal Behavior Wentworth Press
[en] [Gutenberg 10843] • The Mental Life of Monkeys and Apes: A Study of Ideational Behavior Franklin Classics
[en] [Gutenberg 53812] • The Book of Clever Beasts: Studies in Unnatural History Createspace Independent Publishing Platform
[en] [Gutenberg 22129] • "Wee Tim'rous Beasties": Studies of Animal life and Character Createspace Independent Publishing Platform
[en] [Gutenberg 45745] • The Heart of the Wild: Nature Studies from Near and Far Createspace Independent Publishing Platform
[en] [California Novels 01] • The Lavender Field Author & Company
[en] [Dragon Keepers 03] • Dragon Keepers #3 · The Dragon in the Library Random House Children's Books
[en] Thinking Animals Columbia University Press
[en] The Death of the Animal Columbia University Press
[en] Experiencing Animal Minds Columbia University Press
[en] Animalia Americana Columbia University Press
[en] Change of Heart · What Psychology Can Teach Us About Spreading Social Change Lantern Books