The effects of three types of environmental enrichment on the behaviour of captive Javan gibbons (Hylobates moloch)
Studies on a large variety of species have shown that enrichment can be successfully used to encourage natural behaviours, to decrease rates of abnormal behaviour and to improve welfare in captive animals. However, whether or not a specific enrichment device is enriching depends on the species and its circumstances in captivity. In this study, we […]