Chimpanzee

Review of depressive-like behaviours in some group-living mammals

Thanks to animal models of depression, we are getting closer to understand the nature of this disorder in humans – but depressive disorders may not be specific only to humans. Although due to the inability to collect a verbal report...

Year Published: 2025Topics: Emotion, Pain, & SentienceAnimal Type: Baboon, Capuchin, Chimpanzee, Equine, Gibbon, Lemur, Macaque, Marine Mammal, Marmoset, Nonhuman Primate, Other Animal, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Ilmer, I., Smoleń, T. 2025. Review of depressive-like behaviours in some group-living mammals. Applied Animal Behaviour Science 292, 106753.

Using the Welfare Quality® framework to develop a welfare assessment protocol for captive chimpanzees (Pan troglodytes)

Good welfare is of inherent value to all captive animals and promotes species conservation objectives. Concern for animal welfare is growing globally, and research shows that animal welfare is a top priority for zoo visitors. There is, therefore, an urgent...

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

Citation: Gill, N. M., Bueno, M., Anderson, N. E. 2025. Using the Welfare Quality® framework to develop a welfare assessment protocol for captive chimpanzees (Pan troglodytes). Animal Welfare 34, e54.

Mental Health and Well-being in Animals

Since the publication of the first edition of this book, professional and public concern for the well-being of animals has continued to increase throughout the world. Advances in research and technologies have yielded an enormous amount of new knowledge about...

Year Published: 2025Topics: Emotion, Pain, & Sentience, Welfare AssessmentAnimal Type: All/General, Baboon, Bird, Capuchin, Cat, Chicken, Chimpanzee, Crocodile & Alligator, Dog, Equine, Fish, Gibbon, Goat, Lemur, Lizard, Macaque, Marmoset, Nonhuman Primate, Other Animal, Other Nonhuman Primate, Owl Monkey, Parrot, Pig, Rabbit, Reptile, Salmon, Sheep, Snake, Squirrel Monkey, Trout, Turtle & Tortoise, Vervet (African Green Monkey)

Citation: McMillan, F. D. (Ed.) 2025. Mental Health and Well-being in Animals (3rd ed.). CAB International, Oxfordshire, UK. 464 p.

Evaluating the co-occurrence of abnormal behaviors in chimpanzees (Pan troglodytes)

For decades, welfare scientists have focused on investigating and mitigating the abnormal behaviors—including repetitive stereotypic behaviors and abnormal stances/postures—displayed by chimpanzees residing in professionally managed settings. In an effort to design feasible and practical welfare assessments, researchers often pool abnormal...

Year Published: 2025Topics: Abnormal/Problematic BehaviorAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Whitham, J. C., Hall, K., Miller, L. J. 2025. Evaluating the co-occurrence of abnormal behaviors in chimpanzees (Pan troglodytes). American Journal of Primatology 87(2), e70001.

The provision of browse and its impacts on the health and welfare of animals at the zoo: A review

Browsers are animals that consume significant proportions of leaves, twigs, and bark from woody plants. These species have evolved morphological, physiological, and behavioral adaptations to subsist on a specialized diet. In zoos and other managed care facilities, the provision of...

Year Published: 2025Topics: Environmental Enrichment, Husbandry & ManagementAnimal Type: Chimpanzee, Nonhuman Primate, Other Animal, Other Nonhuman Primate

Citation: Ramont, M., Principe, N., Prostko, R. et al. 2025. The provision of browse and its impacts on the health and welfare of animals at the zoo: A review. Zoo Biology 44(2), 105–125.

Exploring the utility of the gut microbiome as a longitudinal health monitoring tool in sanctuary chimpanzees (Pan troglodytes)

The primary goal of captive primate management is to ensure optimal health and welfare of the animals in our care. Given that the gut microbiome interacts closely with host metabolism, immunity, and even cognition, it represents a potentially powerful tool...

Year Published: 2025Topics: Biological Sampling & Physiological Measurement, Husbandry & ManagementAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Amato, K. R., Lake, B. R., Ozminkowski, S. et al. 2025. Exploring the utility of the gut microbiome as a longitudinal health monitoring tool in sanctuary chimpanzees (Pan troglodytes). American Journal of Primatology 87(3), e70004.

The importance of novel and cognitive enrichment for captive chimpanzees (Pan troglodytes) and the use of activity budgets and social network analysis to assess welfare (2025)

I introduced foraging enrichment with a cognitive component to a group of six captive adult chimpanzees living at ZSL Whipsnade Zoo in Dunstable in the United Kingdom. I conducted preliminary behavioural observations for 13 days spread over a four week...

Year Published: 2025Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Stitt, A. E. 2025. The importance of novel and cognitive enrichment for captive chimpanzees (Pan troglodytes) and the use of activity budgets and social network analysis to assess welfare. Canopy 25(2).

A metric-based, meta-analytic appraisal of environmental enrichment efficacy in captive primates (2025)

Non-human primates (hereafter ‘primates') constitute a common group of animals in captivity but their captive maintenance involves ethical and husbandry issues, many of which can be addressed through environmental enrichment (hereafter ‘enrichment'). Enrichment is often applied in a trial-and-error fashion...

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

Citation: Duncan, L. M., Pillay, N. 2025. A metric-based, meta-analytic appraisal of environmental enrichment efficacy in captive primates. Animals 15(6), 799.

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).