Tool use task as environmental enrichment for captive chimpanzees
Wild chimpanzees spend 50–80% of their time foraging, using tools and other forms of manipulation, while captive chimpanzees cannot. In this study, a device—honey in a bottle to be “fished” with artificial materials—that elicits tool use was presented to six captive chimpanzees housed in pairs. The task successfully reduced inactivity by about 52%, increased foraging […]