Nonhuman Primate

The enriched mind: Cognitive stimulation and behavior in non-human primates

Non-human primates (NHPs) possess high cognitive abilities that enable them to respond effectively to complex social, ecological, and psychological challenges. These abilities need to be stimulated in non-human primates under human care in zoos, conservation centers/sanctuaries, or research facilities, where...

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

Citation: Mota-Rojas, D., Whittaker, A. L., Coria-Avila, G. A. et al. 2025. The enriched mind: Cognitive stimulation and behavior in non-human primates. Frontiers in Veterinary Science 12.

Supportive nutrition for elderly chimpanzees: A case study on non-invasive supplementation in a group setting

Ageing chimpanzees Pan troglodytes in zoological settings often experience physiological decline, including loss of body condition and muscle mass, which can negatively impact welfare and longevity. Over a three-year period, three elderly chimpanzees at Antwerp Zoo exhibited rapid and unexplained...

Year Published: 2025Topics: Husbandry & ManagementAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Depauw, S., Riemsdijk, R. V. 2025. Supportive nutrition for elderly chimpanzees: A case study on non-invasive supplementation in a group setting. Journal of Zoo and Aquarium Research 13(4), 241–244.

The use of body condition scoring—Old-World nonhuman primates

Body condition scoring (BCS) is defined as a subjective semiquantitative method of assessing body fat and muscle [JAALA, 51(1) 83-93]. Used as a management tool designed to assess the physical state of an animal, its musculature, body reserves and fat...

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

Citation: Brooks, K., Teti, M. 2025. The use of body condition scoring—Old-World nonhuman primates. Animal Technology and Welfare 24(3), 244–247.

Evaluating behavioral management practices for laboratory nonhuman primates: An international survey

The largest survey to date of behavioral management practices among facilities breeding and housing nonhuman primates (NHPs) for research was conducted from 2019 to 2020. Its primary objective was to analyze and compare practices across the European Union (EU), the...

Year Published: 2026Topics: Animal Training, Environmental Enrichment, Housing, Husbandry & Management, Social Housing & CompanionshipAnimal Type: Baboon, Capuchin, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Baker, K. C., Sewell, F. R., Prescott, M. J. 2026. Evaluating behavioral management practices for laboratory nonhuman primates: An international survey. Animals 16(1).

A review of research in primate sanctuaries

While non-human primate studies have long been conducted in laboratories, and more recently at zoological parks, sanctuaries are increasingly considered a viable setting for research. Accredited sanctuaries in non-range countries house thousands of primates formerly used as subjects of medical...

Year Published: 2020Topics: Housing, Natural BehaviorAnimal Type: Baboon, Capuchin, Chimpanzee, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Ross, S. R., Leinwand, J. G. 2020. A review of research in primate sanctuaries. Biology Letters 16(4), 1620200033.

Use of high frequency jet ventilation as a refinement for imaging macaques with respiratory disease

Imaging is used in human medicine to diagnose disease and monitor treatment efficacy. Computed tomography (CT) positron emission tomography (PET) and magnetic resonance (MR) are applied to animal models of infectious diseases to increase data quality, enhance their relevance to...

Year Published: 2020Topics: Imaging & Electrophysiological RecordingAnimal Type: Macaque, Nonhuman Primate

Citation: Sharpe, S. A., Scott, S., Taylor, I. et al. 2020. Use of high frequency jet ventilation as a refinement for imaging macaques with respiratory disease. Laboratory Animals 54(4), 386–390.

Utility of automated feeding data to detect social instability in a captive breeding colony of rhesus macaques (Macaca mulatta): A case study of intrafamily aggression

Some captive breeding colonies of rhesus macaques live in large outdoor multimale, multifemale social groups. These groups are composed of several matrilineal families, governed by a clear female dominance hierarchy. Aggression within the same or between different matrilineal families due...

Year Published: 2020Topics: Welfare AssessmentAnimal Type: Macaque, Nonhuman Primate

Citation: Johnston, J. R., Meeker, T. L., Ramsey, J. K. et al. 2020. Utility of automated feeding data to detect social instability in a captive breeding colony of rhesus macaques (Macaca mulatta): A case study of intrafamily aggression. JAALAS 59(1), 46–57.

Improved behavioral indices of welfare in continuous compared to intermittent pair-housing in adult female rhesus macaques (Macaca mulatta)

Limiting opportunities for captive nonhuman primates (NHPs) to express species-specific social behaviors may disrupt the adaptive drive for social companionship and may lead to increases in coping behaviors and inactivity. While captive NHPs show improved welfare when moving to pair-housing...

Year Published: 2020Topics: Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Cassidy, L. C., Hannibal, D. L., Semple, S. et al. 2020. Improved behavioral indices of welfare in continuous compared to intermittent pair-housing in adult female rhesus macaques (Macaca mulatta). American Journal of Primatology 82(10), e23189.

Behavioral predictors of pairing success in rhesus macaques (Macaca mulatta)

Pair housing is one of the most important components of behavioral management for caged macaques; however, it can result in aggression and injury if partners are incompatible. Knowing when to proceed and when to stop social introductions can be challenging,...

Year Published: 2020Topics: Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: MacAllister, R. P., Heagerty, A., Coleman, K. 2020. Behavioral predictors of pairing success in rhesus macaques (Macaca mulatta). American Journal of Primatology 82(1), e23081.

Relationship tenure differentially influences pair-bond behavior in male and female socially monogamous titi monkeys (Callicebus cupreus)

Pair-bonded primates have uniquely enduring relationships and partners engage in a suite of behaviors to maintain these close bonds. In titi monkeys, pair bond formation has been extensively studied, but changes across relationship tenure remain unstudied. We evaluated differences in...

Year Published: 2020Topics: Social Housing & CompanionshipAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Rothwell, E. S., Carp, S. B., Savidge, L. E. et al. 2020. Relationship tenure differentially influences pair-bond behavior in male and female socially monogamous titi monkeys (Callicebus cupreus). American Journal of Primatology 82(10), e23181.