Environmental enrichment is a valuable tool for promoting primate welfare in captivity. In this context, research on personality can help clarify how individual differences influence engagement with environmental enrichment at the individual level. Numerous studies suggest that specific personality traits may be associated with heightened motivation to explore or solve environmental enrichments tasks. Nevertheless, this relati...

Foraging devices are effective enrichment tools for non-human primates, as they provide both cognitive and manipulative stimulation that may enhance these animals’ welfare. We assessed the behavioral effects of a novel tool-based enrichment on 14 chimpanzees ( Pan troglodytes ) housed at Fundació Mona (Girona, Spain). The device consisted of a vertical maze filled with food rewards, which chimpanzees could extract by using too...