Other Nonhuman Primate

Beyond single metrics: Multi-parameter home-cage monitoring improves welfare assessment

Single outcome measures often fall short of the sensitivity and objectivity expected under European Directive 2010/63, particularly in fast progressing disease models. To address this gap, the German Research Foundation consortium FOR2591 collated data from 55 routinely used models in...

Year Published: 2026Topics: Welfare AssessmentAnimal Type: Amphibian, Baboon, Capuchin, Chimpanzee, Frog & Toad, Gibbon, Lemur, Macaque, Marmoset, Mouse, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Pig, Rat, Rodent, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Talbot, S. R., Tolba, R. H., Bleich, A. 2026. Beyond single metrics: Multi-parameter home-cage monitoring improves welfare assessment. Laboratory Animals 60(1), 20–24.

Preferential space use exhibited by individual orangutans in an innovative enclosure at Auckland Zoo

To meet the needs of socially complex primates, modern zoo enclosures are designed to include structural, sensory, food-based, and tactile enrichment, as well as opportunities to express the behavioral preferences of zoo-housed individuals. The welfare of captive primates is commonly...

Year Published: 2025Topics: Environmental Enrichment, HousingAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Steiner, H., Malone, N., Battles, H. T. 2025. Preferential space use exhibited by individual orangutans in an innovative enclosure at Auckland Zoo. Journal of Applied Animal Welfare Science 28(4), 703–714.

Complex substrates and bedding for environmental enhancement and research: Or, the nature of primates

Complex substrates, including bedding, have generally been known to encourage nonhuman primate species-typical behaviors and have myriad uses in research, yet are still frequently resisted, especially in laboratory environments. Data show or suggest that complex substrates have the potential to...

Year Published: 2026Topics: Husbandry & ManagementAnimal Type: Baboon, Chimpanzee, Gibbon, Lemur, Macaque, Nonhuman Primate, Other Nonhuman Primate

Citation: Sayers, K., Allen, J., Bellanca, R. U. et al. 2026. Complex substrates and bedding for environmental enhancement and research: Or, the nature of primates. American Journal of Primatology 88(4), e70149.

Responses of mountain gorillas (Gorilla beringei beringei) to deceased infants

Studying nonhuman primates’ responses to the death of conspecifics has gained growing interest in comparative thanatology providing wider evolutionary context for our understanding of human responses to death and mourning. Primates exhibit diverse reactions to infant deaths, with infant corpse...

Year Published: 2026Topics: Natural BehaviorAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Munyawera, J., Morrison, R., Eckardt, W. 2026. Responses of mountain gorillas (Gorilla beringei beringei) to deceased infants. Primates 67(1), 37–48.

Enhancing captive welfare management with deep learning: Video-based detection of gibbon behaviors using YOWOvG

Accurate monitoring of animal behavior is critical for assessing welfare and informing conservation strategies for vulnerable species like the eastern hoolock gibbon (Hoolock leuconedys). To overcome limitations of manual observation and single-frame analysis in captive settings, this study developed the...

Year Published: 2026Topics: Welfare AssessmentAnimal Type: All/General, Nonhuman Primate, Other Nonhuman Primate

Citation: Luo, J., Du, Y., Wang, Y. et al. 2026. Enhancing captive welfare management with deep learning: Video-based detection of gibbon behaviors using YOWOvG. Journal of Applied Animal Welfare Science 29(1), 160–175.

Exploring dietary practices and faecal consistency in zoo-housed cotton-top tamarins Oedipomidas oedipus

The cotton-top tamarin Oedipomidas oedipus is currently classified as critically endangered by the IUCN, prompting intensive conservation efforts, including the maintenance of healthy populations under human care. However, ensuring optimal welfare and health remains challenging, particularly in terms of nutritional...

Year Published: 2026Topics: Husbandry & Management, Welfare AssessmentAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Urrego, A. C. B., Mendoza, J. C., Vieira, M. F. et al. 2026. Exploring dietary practices and faecal consistency in zoo-housed cotton-top tamarins Oedipomidas oedipus. Journal of Zoo and Aquarium Research 14(1), 38–45.

Effect of noise on bornean orangutans’ glucocorticoid metabolite (GCM) levels

Zoos are increasingly hosting out-of-hours events such as ‘Music Nights’ to increase visitation, raising potential animal welfare concerns due to anthropogenic noise pollution. This study examined the physiological stress response, measured through faecal glucocorticoid metabolite (FGCM), of Bornean orangutans (Pongo...

Year Published: 2025Topics: Human-Animal Interaction, Husbandry & ManagementAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Queiroz, M. B. de, Passos, L. F., Azevedo, C. S. de et al. 2025. Effect of noise on bornean orangutans’ glucocorticoid metabolite (GCM) levels. Animals 15(23).

Developing and validating a holistic welfare assessment tool for zoo-housed great apes: Integrating resource-based measures with behavioural ecology insights

Assessing the welfare of zoo-housed great apes is essential to ensure high standards of care, maintain zoos’ ethical and educational credibility, and support their conservation roles. However, welfare assessment remains challenging due to the complex cognitive, social, and behavioural needs...

Year Published: 2026Topics: Welfare AssessmentAnimal Type: Chimpanzee, Nonhuman Primate, Other Nonhuman Primate

Citation: Neufuss, J., Pullen, K., Farmer, H. L. et al. 2026. Developing and validating a holistic welfare assessment tool for zoo-housed great apes: Integrating resource-based measures with behavioural ecology insights. PLOS ONE 21(1), e0340094.

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.

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).