Mellen, J. D. , Sheperdson, D. J. 1992. Environmental enrichment for zoo chimpanzees. In: The Care and Management of Chimpanzees (Pan Troglodytes) in Captive Environments. Fulk, R. , Garland, C. (eds), 64-71. North Carolina Zoological Society, North Carolina Zoological Park, NC.

Discussion of inanimate enrichment options for chimpanzees. It is interesting and unfortunate that most of the forms of [inanimate] enrichment that have been carefully evaluated are more effective for immature animals than for adults.

Year
1992