For polar bears that remain in zoological collections, sophisticated enrichment programs and welfare-centered management are essential to minimize the welfare costs of captivity.
Polar bear enrichment programs represent a welfare investment that partially mitigates but cannot eliminate the fundamental welfare constraints of captivity for these animals. The fact that well-designed enrichment programs in excellent facilities still typically produce animals with measurable stereotypic behavior is itself significant welfare evidence. Enrichment should be pursued and continuously improved for polar bears in existing collections — it demonstrably improves welfare relative to barren conditions. But the persistence of behavioral indicators of psychological suffering despite best efforts should inform institutional decisions about future polar bear acquisition for exhibition.