Lemur

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.

Impacts of chopped food on primate behavior are not clear cut. A case study on zoo-housed ring-tailed lemurs

Measuring how food presentation influences behavior helps encourage practices that support natural foraging efforts for species housed in zoos. To test the effect of food presentation on a commonly housed zoo primate, observations of the behavior of ring-tailed lemurs (Lemur...

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

Citation: George, A. J., Tull, S., Rose, P. 2025. Impacts of chopped food on primate behavior are not clear cut. A case study on zoo-housed ring-tailed lemurs. Zoo Biology 44(5), 442–452.

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.

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).

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.

Evaluating indicators of wellbeing in captive grey mouse lemurs, Microcebus murinus, in the context of enrichment

Developing and implementing effective approaches to improve the welfare of animals participating in research requires reliable monitoring of their wellbeing. Since wellbeing is a multidimensional state that relates to an individual's physiological, behavioural and psychological/mental health, assessing it requires the...

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

Citation: Perea-Rodriguez, J. P., Ferreira, J., Anzeraey, A. et al. 2024. Evaluating indicators of wellbeing in captive grey mouse lemurs, Microcebus murinus, in the context of enrichment. Animal Behaviour 218, 121–134.

Novel scent enrichment enhances socio-sexual and olfactory behaviors in zoo-housed gentle lemurs

The Alaotran gentle lemur (Hapalemur Alaotrensis) is one of the most endangered primates in the world and shows a low success rate in captive breeding programmes. We tested a novel scent enrichment, made up of a synthesized mixture likely conveying...

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

Citation: Fontani, S., Glendewar, G., Cowen, R. et al. 2025. Novel scent enrichment enhances socio-sexual and olfactory behaviors in zoo-housed gentle lemurs. American Journal of Primatology 87(1), e23716.

Primate enrichment categories: A literature review of current trends

Environmental enrichment aims to enhance primate wellbeing by providing physical and mental stimuli to address the biological and psychological needs of individuals. However, lack of knowledge regarding the development of enrichment research hampers implementors and future inquiries. Therefore, a collection...

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

Citation: Richardson, S. 2024. Primate enrichment categories: A literature review of current trends. Animal Behavior and Cognition 11(1), 87–100.