Marmosets were a critical model for understanding the effects of Zika infections on pregnant mothers.  In mid-2018, six national primate research centers conducted a collaborative study. It showed pregnancy loss due to Zika infections that don’t generate any symptoms in women may be a common, but unrecognized cause of unexpected…

Monkeys are given enrichment such as toys, swings, climbing structures and other items to increase their behavioral diversity. Many of these objects are rotated on a regular basis, to keep them novel.  This indoor enclosure for the monkeys at Oregon National Primate Research Center provides many opportunities that encourage natural…

Nonhuman primates, like these Rhesus macaques, are naturally curious. They spend a great deal of time foraging and investigating novel objects in their natural habitats. Environmental enrichment provides a way to simulate a natural environment for monkeys that are needed for research.  This increases opportunities for the expression of species-typical…

Environmental enrichment is an important part of caring for research animals. Research animals are provided with several types of enrichment to stimulate species-typical behaviors. These juvenile rhesus macaques are enjoying mini marshmallow treats. Interactions with their caregiver give them social and intellectual stimulation, while strengthening their bonds with each other.…