ABSTRACT Sumatran tigers (Panthera tigris sumatrae) are currently listed as critically endangered on the IUCN Red List. In modern zoos. the need to balance the welfare of tigers while maintaining visitor interest presents a significant challenge. The aim of this study was to assess the behaviour of five Sumatran tigers housed in two separate groups and habitat areas (male housed alone... https://www.roneverhart.com/Clear-Zig-Zag-Pet-Gate/