Activity and Pool Use in Relation to Temperature and Water Changes in Zoo Hippopotamuses (Hippopotamus amphibious)

In the wild, hippopotamuses spend much of their daily activity in the water. In zoos, it is less clear the extent to which hippos spend time in the water. We examined how much time Woodland Park Zoo’s three hippos spent in their outdoor pool, based on: (a) temperature of the pool water, and (b) when […]

Utilizing Scents as Environmental Enrichment: Preference Assessment and Application with Rothschild Giraffe

Zoological institutions use environmental enrichment to increase opportunities for animals to engage in species-appropriate behavior. In these facilities, enrichment for giraffe typically consists of different types of feeders to increase the percentage of time spent foraging. The current study explored the use of scent enrichment as a way to increase exploration, activity levels and space […]

The Effect of the Captive Environment on Activity of Captive Cotton-Top Tamarins (Saguinus oedipus)

This study examined captive cotton-top tamarin (Saguinus oedipus) behavior across 3 different exhibits: (a) a rainforest (30.5 m in diameter), where tamarins free-ranged with other species; (b) a caged outdoor exhibit (5 m in diameter); and (c) a caged enclosure, with access indoors (6 x 9m) and outdoors (2.5 x 2.5 m). The study observed […]

Gorilla behavior in response to systematic alternation between zoo enclosures

To determine the effects of relative novelty on captive gorilla behavior, the regular alternation of two groups between complex naturalistic enclosures was studied at Zoo Atlanta. A continuous behavioral change sampling method was used to obtain information on behavior, and instantaneous scans at 10-min intervals provided information on the location of all gorillas in the […]