Nonhuman Primate

Home-cage training for non-human primates: an opportunity to reduce stress and study natural behavior in neurophysiology experiments (2025)

Research involving non-human primates remains a cornerstone in fields such as biomedical research and systems neuroscience. However, the daily routines of laboratory work can induce stress in these animals, potentially compromising their well-being and the reliability of experimental outcomes. To...

Year Published: 2025Topics: Animal TrainingAnimal Type: Baboon, Capuchin, Chimpanzee, Gibbon, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Ceccarelli, F., Londei, F., Arena, G. et al. 2025. Home-Cage Training for Non-Human Primates: An Opportunity to Reduce Stress and Study Natural Behavior in Neurophysiology Experiments. Animals 15(9), 1340.

A systematic review of the effects of musical enrichment on captive mammals (2025)

Forty two studies examining physiological, behavioural and cognitive mammalian responses to music were identified, with 38.1% of those studies focusing on primates. The studies identified included 23 mammalian species across six animal orders (Artiodactyla, Carnivora, Perissodactyla, Primates, Proboscidea and Rodentia)....

Year Published: 2025Topics: Environmental EnrichmentAnimal Type: Baboon, Capuchin, Cat, Chimpanzee, Chinchilla, Dog, Gerbil, Gibbon, Guinea Pig, Hamster, Lemur, Macaque, Marmoset, Mole Rat, Mouse, Nonhuman Primate, Other Nonhuman Primate, Other Rodent, Owl Monkey, Rat, Rodent, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Alkalaj, M. 2025. A systematic review of the effects of musical enrichment on captive mammals. Canopy 25(2).

Long term impacts of early social environment on chimpanzee white matter

Early adverse rearing conditions are known to have deleterious consequences on social behavior, cognition, and brain development of both human and nonhuman primates. We analyzed archival diffusion tensor imaging (DTI) data from mother- (MR) or nursery-reared (NR) chimpanzees and used...

Year Published: 2024Topics: Social Housing & CompanionshipAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Mulholland, M. M., Hecht, E., Wesley, M. J. et al. 2024. Long term impacts of early social environment on chimpanzee white matter. Scientific Reports 14(1), 29879.

Update on current hormonal and non-hormonal contraceptive options in non-human primates

Reproductive success in captive non-human primates (NHPs) has increased the demand for safe, effective, and reversible population control methods. This review provides an overview of the current literature on hormonal and non-hormonal contraceptives as reproductive control methods in NHPs. Where...

Year Published: 2024Topics: ReproductionAnimal Type: Baboon, Capuchin, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Nederlof, R. A., Bruins-van Sonsbeek, L. G. R., Stumpel, J. B. G. et al. 2024. Update on current hormonal and non-hormonal contraceptive options in non-human primates. Journal of Zoological and Botanical Gardens 5(4), 606–629.

Specifically unspecific – Simple devices as feasible and effective enrichment for small mammals

Although enrichment is an essential part of modern zoo animal husbandry, research on effective enrichment for small mammals is scarce, albeit they are regularly kept in zoos. To develop solutions that are inexpensive, readily applicable, and adaptable for a variety...

Year Published: 2024Topics: Environmental EnrichmentAnimal Type: Nonhuman Primate, Other Animal, Other Nonhuman Primate, Other Rodent, Rat, Rodent

Citation: Göbel, M., Kaiser, S., Richter, H. et al. 2024. Specifically unspecific – Simple devices as feasible and effective enrichment for small mammals. Animal Behavior and Cognition 11(3), 305–329.

Enriched social environment affects the utterance of acoustic signals of captive François’ langurs

Vocal communication serves as an important mode of interaction among animals. The quantitative analysis of acoustic signals holds scientific value in highlighting the importance of understanding the social-ecological contexts and their effects on acoustic communication. The results can provide a...

Year Published: 2024Topics: VocalizationAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Xie, Y., Liu, Y., Li, Y. et al. 2024. Enriched social environment affects the utterance of acoustic signals of captive François' langurs. Applied Animal Behaviour Science 277, 106351.

Evaluating enrichment use in group-housed rhesus macaques (Macaca mulatta): A machine learning approach

Environmental enrichment programmes are widely used to improve welfare of captive and laboratory animals, especially non-human primates. Monitoring enrichment use over time is crucial, as animals may habituate and reduce their interaction with it. In this study we aimed to...

Year Published: 2024Topics: Environmental EnrichmentAnimal Type: Macaque, Nonhuman Primate

Citation: Ciminelli, G., Witham, C., Bateson, M. 2024. Evaluating enrichment use in group-housed rhesus macaques (Macaca mulatta): A machine learning approach. Animal Welfare 33, e59.

First noncontact millimeter-wave radar measurement of heart rate in great apes: Validation in chimpanzees (Pan troglodytes)

Heart rate is a crucial vital sign and a valuable indicator for assessing the physical and psychological condition of a target animal. Heart rate contributes to (1) fundamental information for cognitive research, (2) an indicator of psychological and physical stress,...

Year Published: 2024Topics: Biological Sampling & Physiological MeasurementAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Matsumoto, T., Iwata, I., Sakamoto, T. et al. 2024. First noncontact millimeter-wave radar measurement of heart rate in great apes: Validation in chimpanzees (Pan troglodytes). American Journal of Primatology 86(8), e23633.

Outdoor noncontact respiratory measurements of unrestricted rhesus macaques (Macaca mulatta) using millimeter-wave radar

Respiration is an invaluable signal that facilitates the real-time observation of physiological dynamics. In recent years, the advancement of noncontact measurement technology has gained momentum in capturing physiological activities in natural settings. This technology is anticipated to be found not...

Year Published: 2024Topics: Biological Sampling & Physiological MeasurementAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Minami, T., Sanematsu, D., Iwata, I. et al. 2024. Outdoor noncontact respiratory measurements of unrestricted rhesus macaques (Macaca mulatta) using millimeter-wave radar. American Journal of Primatology 86(9), e23661.

The influence of age, sex, and season on hematological parameters in a captive population of former laboratory chimpanzees (Pan troglodytes)

This study aimed to establish a baseline hematological profile and examine the influence of age, sex, and season on hematological parameters in captive chimpanzees (Pan troglodytes) living in a humid tropical climate. Hematological parameters are a useful tool for assessing...

Year Published: 2025Topics: Welfare AssessmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Ngoubangoye, B., Dibakou, S.-E., Otsaghe Ekore, D. et al. 2025. The influence of age, sex, and season on hematological parameters in a captive population of former laboratory chimpanzees (Pan troglodytes). American Journal of Primatology 87(1), e23703.