Chimpanzee

Captive chimpanzee (Pan troglodytes) behavior as a function of space per animal and enclosure type

Space per animal, or animal density, and enclosure type are important elements of functionally appropriate captive environments (FACEs) for chimpanzees. The National Institutes of Health (NIH) recommends that captive chimpanzees be maintained in areas of >250 ft2/animal. Several studies have...

Year Published: 2018Topics: HousingAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Neal Webb, S. J., Hau, J., Schapiro, S. J. 2018. Captive chimpanzee (Pan troglodytes) behavior as a function of space per animal and enclosure type. American Journal of Primatology 80(2), e22749.

Infrared thermal imaging: Positive and negative emotions modify the skin temperatures of monkey and ape faces

Facial thermography has enabled researchers to noninvasively and continuously measure the changes of a range of emotional states in humans. The present work used this novel technology to study the effect of positive and negative emotions in nonhuman primates by...

Year Published: 2018Topics: Welfare AssessmentAnimal Type: Baboon, Capuchin, Chimpanzee, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Chotard, H., Ioannou, S., Davila-Ross, M. 2018. Infrared thermal imaging: Positive and negative emotions modify the skin temperatures of monkey and ape faces. American Journal of Primatology 80(5), e22863.

Does mirror enrichment improve primate well-being? Animal Welfare 25(2), 163-170

Primates are highly social animals and appropriate enrichment is required to ensure their psychological well-being. Mirrors are sometimes used as social or sensory environmental enrichment. In this paper we investigate the suitability of mirrors as enrichment for captive primates, by...

Year Published: 2016Topics: Environmental EnrichmentAnimal Type: Baboon, Capuchin, Chimpanzee, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: de Groot, B., Cheyne, S. M. 2016. Does mirror enrichment improve primate well-being? Animal Welfare 25(2), 163-170.

A review of population control methods in captive-housed primates

The success of breeding primates in captivity has led to a surplus number of animals in collections. This review examines published journals and key books to investigate the various methods of primate population control. Hormonal, surgical and separation methods are...

Year Published: 2016Topics: Husbandry & Management, ReproductionAnimal Type: Baboon, Capuchin, Chimpanzee, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Wallace, P. Y., Asa, C. S., Agnew, M. et al. 2016. A review of population control methods in captive-housed primates. Animal Welfare 25(1), 7-20.

Is music enriching for group-housed captive chimpanzees (Pan troglodytes)?

Many facilities that house captive primates play music for animal enrichment or for caregiver enjoyment. However, the impact on primates is unknown as previous studies have been inconclusive. We conducted three studies with zoo-housed chimpanzees (Pan troglodytes) and one with...

Year Published: 2017Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Wallace, E. K., Altschul, D., Körfer, K. et al. 2017. Is music enriching for group-housed captive chimpanzees (Pan troglodytes)? PLOS ONE 12(3), e0172672.

Intelligenzprüfungen an Menschenaffen

Chimpanzees readily use tools in most intelligent ways to retrieve food items.

Year Published: 1921Topics: Natural BehaviorAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Köhler, W. 1921. Intelligenzprüfungen an Menschenaffen. Springer Verlag, Berlin, Germany.

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 .