Response to novel objects and foraging tasks by common marmoset (Callithrix jacchus) female pairs

The authors analyze the effects of enrichment devices on the behavior of common marmoset female pairs, and determine which aspects of these devices are more likely to elicit explorative behaviors, and how their presence affects aggressive and stress-related behaviors. The results support the use of enrichment devices for captive primates and show that in marmosets, their effectiveness strongly depends on location within the enclosure and the presence of hidden food.