Chimpanzees - Behavior.

Folk physics for apes = the chimpanzee's theory of how the world works / by: (Electronic resources)

Our inner ape : = a leading primatologist explains why we are who we are / by: (Language materials, printed)

Mama's last hug : = animal emotions and what they tell us about ourselves / by: (Language materials, printed)

Chimpanzees- Psychology.

Psychology, Comparative.

Tool use in animals.

Bonobo- Behavior.

Emotions in animals.

Chimpanzees- Behavior.

Human behavior.