Cognitive Research in Zoo-Housed Chimpanzees: Influence of Personality and Impact on Welfare

Assessing the effects of cognitive experiments on the welfare of captive chimpanzees (Pan troglodytes) by direct comparison of activity budget between wild and captive chimpanzees

(2011) Yumi Yamanashi et al.   AMERICAN JOURNAL OF PRIMATOLOGY

Great ape cognition and captive care: Can cognitive challenges enhance well-being?

(2011) Fay E. Clark   APPLIED ANIMAL BEHAVIOUR SCIENCE

Assessing chimpanzee personality and subjective well-being in Japan

(2009) Alexander Weiss et al.   AMERICAN JOURNAL OF PRIMATOLOGY

Effects of positive reinforcement training techniques on the psychological welfare of zoo-housed chimpanzees (Pan troglodytes)

(2009) Ori Pomerantz et al.   AMERICAN JOURNAL OF PRIMATOLOGY

An experimental, comparative investigation of tool use in chimpanzees and gorillas

(2009) E.V. Lonsdorf et al.   ANIMAL BEHAVIOUR

What do dolphins (Tursiops truncatus) understand about hidden objects?

(2009) Kelly Jaakkola et al.   ANIMAL COGNITION