Polar bears are iconic but controversial zoo residents. Their behavioral needs are among the most challenging to meet in captivity, raising serious questions about the ethics of polar bear keeping.
Polar bear welfare in zoo settings has become one of the most ethically contested questions in contemporary zoo biology. The data on stereotypic behavior is stark: a majority of captive polar bears exhibit stereotypic pacing or other repetitive behaviors, which are widely accepted as indicators of significant welfare compromise. No zoo exhibit, however large, can meaningfully replicate the vast sea ice habitat that polar bears are behaviorally adapted to exploit. Enrichment and complex environments help but do not resolve the fundamental mismatch. Several major institutions have concluded that the welfare standards they can provide are insufficient and have ended polar bear programs. Others continue, arguing that educational and conservation value justifies continued keeping with best-available welfare provisions. This debate requires honest acknowledgment of the evidence on stereotypic behavior rather than defensive institutional positioning.