The Mentality of Apes

Animal psychology,: Its nature and its problems (Hutchinson's University Library: Psychology)

The nature of the beast: A popular account of animal psychology from the point of view of a naturalist

An introduction to animal psychology;: The behavior of the rat,

The Mentality of Apes

Handbook of Psychological Research on the Rat: An Introduction to Animal Psychology

Rich dogs: A photo collection. Funny gift for dog lovers

Boredom Busters for Birds: 40 Fun and Feather-Friendly Toys and Activities (CompanionHouse Books) Enrich Your Bird's Life with Solo, Social, and Environmental Improvements for a Happy Feathered Friend

Smart Survivors

Not Your Average Grandma: The story of a little senior rescue dog with big life lessons