This study investigated the effects of performing animal-training sessions with Asian small-clawed otters ( Aonyx cinerea) while zoo visitors watched. The effects of having an interpreter present to describe the otters and their training on zoo visitors were also assessed. The data from 389 visitors to Zoo Atlanta’s otter exhibit were analyzed, and exhibit stay times and animal activity levels were recorded during four conditions (passive exhibit viewing, interpretation-only sessions, public animal- training sessions, and public animal training with interpretation sessions). The findings suggest that public animal training and public animal training with interpretation produce more positive zoo experiences, training perceptions, exhibit size and staff assessments, and longer visitor exhibit stay times when compared to passive exhibit viewing and interpretation-only sessions. This study quantifies an outcome of positive reinforcement training beyond its effects on animals and extends the benefits to zoo visitors by providing information on how to increase positive perceptions and experiences for zoological park visitors.

Tigers and lions in the wild are nocturnal nonhuman animals who may hunt and mate opportunistically during daylight hours. In captivity, they spend most time on exhibit sleeping or pacing. To better understand their activity budget, this study examined the daily behavior patterns of 2 Sumatran tigers and 3 African lions in different housings. The proportion of scans the large felids spent engaged in stereotypic pacing varied by time of day and environment. The tigers spent different amounts of time pacing when housed in different exhibits; the lions paced more in off-exhibit housing than when on exhibit. These differences suggest changes to the cats' immediate housing environment may decrease pacing but provide little insight into altering specifics. Carnivores' pacing relates to their inability to control sensory access to social partners. Both environments with increased pacing contained chain-link fencing. allowing uncontrolled sensory contact. Where the tigers paced, the study placed a visual barrier between one female and keepers' or conspecifics' cues. This did not significantly decrease pacing. However, the study suggests considering sensory access and environmental variables when designing environments for captive carnivores.