Nonhuman Primate

Enriched sleep environments lengthen lemur sleep duration

Characteristics of the sleep-site are thought to influence the quality and duration of primate sleep, yet only a handful of studies have investigated these links experimentally. Using actigraphy and infrared videography, we quantified sleep in four lemur species (Eulemur coronatus,...

Year Published: 2021Topics: Environmental EnrichmentAnimal Type: Lemur, Nonhuman Primate

Citation: Vining, A. Q., Nunn, C. L., Samson, D. R. 2021. Enriched sleep environments lengthen lemur sleep duration. PLOS ONE 16(11), e0253251.

Knowledge-based enrichment: Development of a novel enrichment device for captive chimpanzees

The field of environmental enrichment has grown considerably, but most enrichment is still focused on tasks where highly valued food rewards are directly visible. We designed a device which would instead make use of knowledge states, motivational structure, and physical...

Year Published: 2021Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Brooks, J., Yoshimura, H., Taki, Y. 2021. Knowledge-based enrichment: Development of a novel enrichment device for captive chimpanzees. Zoo Biology 40(5), 398-406.

Chronic captivity stress in wild animals is highly species-specific

Wild animals are brought into captivity for many reasons—conservation, research, agriculture and the exotic pet trade. While the physical needs of animals are met in captivity, the conditions of confinement and exposure to humans can result in physiological stress. The...

Year Published: 2019Topics: HousingAnimal Type: All/General, Amphibian, Baboon, Capuchin, Chimpanzee, Crocodile & Alligator, Frog & Toad, Gibbon, Lemur, Lizard, Macaque, Marine Mammal, Marmoset, Nonhuman Primate, Other Animal, Other Nonhuman Primate, Owl Monkey, Reptile, Salamander, Snake, Squirrel Monkey, Turtle & Tortoise, Vervet (African Green Monkey)

Citation: Fischer, C. P., Romero, L. M. 2019. Chronic captivity stress in wild animals is highly species-specific. Conservation Physiology 7(1), coz093.

Refined acquisition of high-resolution chest CTs in macaques by free breathing

The use of medical imaging as a non-invasive or minimally invasive method to assess disease or treatment response continues to grow. A similar trend is observed in pre-clinical research, in general, and more specifically in macaques, enabling longitudinal assessment of...

Year Published: 2021Topics: Imaging & Electrophysiological RecordingAnimal Type: Macaque, Nonhuman Primate

Citation: Tölgyesi, B., Bakker, J., Nagy, K. et al. 2021. Refined acquisition of high-resolution chest CTs in macaques by free breathing. Laboratory Animals 55(6), 551-559.

DIY: Acacia gum hanging saucer

This article describes the ingredients, supplies, and directions to make this DIY hanging item, which is great for NHP and swine.

Year Published: 2021Topics: Environmental EnrichmentAnimal Type: Baboon, Capuchin, Chimpanzee, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Pig, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Lambert, K. 2021. DIY: Acacia gum hanging saucer. Laboratory Animal Science Professional 9(5) (September/October), 50.

DIY: Busy boxes

This article describes the ingredients and directions to make this simple DIY destructible enrichment for NHP and swine.

Citation: Lambert, K. 2021. DIY: Busy boxes. Laboratory Animal Science Professional 9(6) (November/December), 32.

Female social structure influences, and is influenced by, male introduction and integration success among captive rhesus macaques (Macaca mulatta)

Animal social structure is influenced by multiple socioecological factors. Of these, the links between changes to group demography through the arrival of new individuals and residents' social structure remain unclear. Across seven groups of captive rhesus macaques (Macaca mulatta), we...

Year Published: 2021Topics: Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Balasubramaniam, K. N., Beisner, B. A., McCowan, B. et al. 2021. Female social structure influences, and is influenced by, male introduction and integration success among captive rhesus macaques (Macaca mulatta). Behaviour 158(11), 1007–1042.

Can animals develop depression? An overview and assessment of “depression-like” states

Describing certain animal behaviours as 'depression-like' or 'depressive' has become common across several fields of research. These typically involve unusually low activity or unresponsiveness and/or reduced interest in pleasure (anhedonia). While the term 'depression-like' carefully avoids directly claiming that animals...

Year Published: 2021Topics: Emotion, Pain, & SentienceAnimal Type: Bird, Cattle, Chicken, Dog, Equine, Fowl, Macaque, Mouse, Nonhuman Primate, Pig, Rat, Rodent

Citation: MacLellan, A., Fureix, C., Polanco, A. et al. 2021. Can animals develop depression? An overview and assessment of “depression-like” states. Behaviour 158(14/15), 1303–1353.

Outside the box: Working with wildlife in biocontainment

Research with captive wildlife in Animal Biosafety Level 2 (ABSL2) and 3 (ABSL3) facilities is becoming increasingly necessary as emerging and re-emerging diseases involving wildlife have increasing impacts on human, animal, and environmental health. Utilizing wildlife species in a research...

Year Published: 2021Topics: Animal Training, Environmental Enrichment, Handling, Housing, Husbandry & Management, RestraintAnimal Type: Macaque, Nonhuman Primate, Other Animal

Citation: Falendysz, E. A., Calhoun, D. M., Smith, C. A. et al. 2020. Outside the box: Working with wildlife in biocontainment. ILAR Journal 61(1), 72-85.

Effects of a heated anesthesia breathing circuit on body temperature in anesthetized rhesus macaques (Macaca mulatta)

This study evaluated the effects of using a heated anesthesia breathing circuit in addition to forced-air warming on body temperature in anesthetized rhesus macaques as compared with forced-air warming alone. Hypothermia is a common perianesthetic and intraoperative complication that can...

Year Published: 2021Topics: Surgery & Post-OpAnimal Type: Macaque, Nonhuman Primate

Citation: Bowling, P. A., Bencivenga, M. A., Leyva, M. E. et al. 2021. Effects of a heated anesthesia breathing circuit on body temperature in anesthetized rhesus macaques (Macaca mulatta). JAALAS 60(6), 675-680.