A stereo music system as environmental enrichment for captive chimpanzees (2003)

Howell, S., Schwandt, M., Fritz, J. et al.

Abstract

Music was associated with a significant decrease in agitated/aggression and active/explore behaviors during the AM hours [feeding and cleaning time]. .. At these times, we suggest music can be beneficial as an environmental enrichment. When colony activities are relatively low, however, we suggest music may not be an effective environmental enrichment because it may result in decreased activity levels.