Polar bear exhibit design in zoos has evolved significantly in response to welfare concerns, with modern facilities incorporating larger spaces, water features, and diverse enrichment.
Polar bear exhibit design represents a direct determinant of welfare outcomes for captive individuals. Historical small exhibits with hard flooring and minimal complexity produced near-universal stereotypic behaviour. Modern large, complex exhibits with diverse substrates, water access, and regular enrichment reduce but do not eliminate stereotypic behaviour, reflecting the inherent limitation of captivity for a species evolved for vast Arctic ranges. The welfare benefit of exhibit improvements is real and measurable in reduced stereotypy and improved behavioural diversity. However, the strongest welfare position acknowledges that no exhibit fully meets polar bear needs.