Chimpanzee

Effects of relocation and individual and environmental factors on the long-term stress levels in captive chimpanzees (Pan troglodytes): Monitoring hair cortisol and behaviors

Understanding the factors associated with the long-term stress levels of captive animals is important from the view of animal welfare. In this study, we investigated the effects of relocation in addition to individual and environmental factors related to social management...

Year Published: 2016Topics: Husbandry & Management, Relocation & TransportAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Yamanashi, Y., Teramoto, M., Morimura, N. et al. 2016. Effects of relocation and individual and environmental factors on the long-term stress levels in captive chimpanzees (Pan troglodytes): Monitoring hair cortisol and behaviors. PLOS ONE 11(7), e0160029.

Morphine addiction in chimpanzees

Author provides formal description of training four unrestrained chimpanzees to approach an investigator and accept an injection of physiological saline solution. The training comprised a combination of adaptation, desensitization, and shaping, with fruit, praise, and patting as reinforcers. It is...

Year Published: 1940Animal Type: Chimpanzee, Nonhuman Primate

Citation: Spragg, S. D. S. 1940. Morphine addiction in chimpanzees. Comparative Psychology Monographs 15, 1-132.

The Intelligence of Apes

It is hardly an exaggeration to say that a chimpanzee kept in solitude is not a real chimpanzee at all.

Year Published: 1927Animal Type: Chimpanzee, Nonhuman Primate

Citation: Kohler, W. 1927. The Intelligence of Apes. Metheun, London, UK.

Tool-using and aimed throwing in a community of free-living chimpanzees

Year Published: 1964Animal Type: Chimpanzee, Nonhuman Primate

Citation: Goodall, J. 1964. Tool-using and aimed throwing in a community of free-living chimpanzees. Nature 201, 1264-1266 .

Situation and stimulus effect on stereotyped behaviors of chimpanzees

Stereotyped behaviors are present on many occasions, but observers have noted that they are particularly prevalent when some degree of 'tension' is presumably present. ... The level of stereotyped behaviors was highest in an enclosed cubicle. This effect was apparently...

Year Published: 1963Animal Type: Chimpanzee, Nonhuman Primate

Citation: Berkson, G., Mason, W. A., Saxon, S. U. 1963. Situation and stimulus effect on stereotyped behaviors of chimpanzees. Journal of Comparative and Physiological Psychology 56, 786-792.

Chimpanzees of the Budongo Forest

At a very rough estimate, chimpanzees in the Budongo Forest spent an average of from 50 to 75 percent of the daylight hours in trees.

Year Published: 1965Animal Type: Chimpanzee, Nonhuman Primate

Citation: Reynolds, V. , Reynolds, A. 1965. Chimpanzees of the Budongo Forest. In: Primate Behavior - Field Studies of Monkeys and Apes. De Vore, I. (ed), 368-424. Holt, Rinehart and Winston, New York, NY.

The UFAW Handbook on the Care and Management of Laboratory Animals (3rd ed): The Chimpanzee (Pan troglodytes)

Companionship is far more important [than large cage-volume]. Isolated chimpanzees in large cages show more behavioural effects of environmental restriction than do members of pairs kept in small cages.

Year Published: 1967Animal Type: Chimpanzee, Nonhuman Primate

Citation: Riopelle, A. J. 1967. The Chimpanzee (Pan troglodytes). In: The UFAW Handbook on the Care and Management of Laboratory Animals (3rd ed). UFAW [Universities Federation for Animal Welfare] (ed), 696-708. Churchill Livingstone, London, UK.

A preliminary report on expressive movements and communication in the Gombe Stream chimpanzee

Excellent overview of the species-typical behavior of wild chimpanzees.

Year Published: 1968Animal Type: Chimpanzee, Nonhuman Primate

Citation: Van Lawick-Goodall, J. 1968. A preliminary report on expressive movements and communication in the Gombe Stream chimpanzee. In: Primates - Studies in Adaptation and Variability. Jay, P. C. (ed), 313-374. Holt, Rinehart and Winston, New York, NY.

Primate grooming as a tension reduction mechanism

In this paper grooming was considered as a response to tension generated by an event which threatens the integration of a specific member of the group. In response to this tension, grooming is engaged in with the result that the...

Year Published: 1970Animal Type: Chimpanzee, Macaque, Nonhuman Primate

Citation: Terry, R. L. 1970. Primate grooming as a tension reduction mechanism. Journal of Psychology 76, 129-136.

Chimpanzees: Self-recognition

After prolonged exposure to their reflected images in mirrors, chimpanzees marked with red dye showed evidence of being able to recognize their own reflections. Monkeys did not appear to have this capacity.

Year Published: 1970Animal Type: Chimpanzee, Nonhuman Primate

Citation: Gallup, G. G. 1970. Chimpanzees: Self-recognition. Science 167, 86-87.