Polar bears face extreme welfare challenges in captivity due to their vast natural ranging requirements, and welfare depends critically on innovative enrichment, appropriate social conditions, and honest assessment of whether captivity can meet their needs.
Polar bear welfare in captivity raises fundamental questions about whether any zoo enclosure can provide adequate conditions for an animal whose natural life involves almost unlimited movement across Arctic landscapes. The prevalence of stereotypic pacing in captive polar bears — which may affect 30-40% or more of zoo populations — is the most visible indicator of chronic welfare compromise. Stereotypies once established are largely irreversible and indicate that environmental conditions during critical developmental periods failed to meet the animal's needs. The welfare harms of inadequate space and complexity are real and ongoing. Zoos that maintain polar bears have a genuine obligation to provide the most sophisticated enrichment possible — complex foraging puzzles, variable food presentation, ice and water features, behavioural choice — and to honestly assess whether individual animals are experiencing adequate welfare. Some zoological institutions have made the difficult decision not to hold polar bears based on welfare grounds; this represents an honest acknowledgment of the limitations of captivity for highly mobile arctic specialists.