Old water hose, new enrichment device (2004)

Hummel, D.

Abstract

Sections of water hose were combined with gnawing sticks or toys and suspended in the cage. We found that when these wood branches or chew-toys are hung from the top of the cage, the primates [unspecified species] pay more attention to it then if it wass lying in the bottom of the cage. No data are included in this article.