Polar bears in zoos face profound welfare challenges from the mismatch between their Arctic adaptations and temperate zoo environments, requiring specialist facilities and management to achieve acceptable welfare.
Polar bears in inadequate facilities show some of the most severe stereotypic behaviour recorded in any captive animal - repetitive pacing covering kilometres daily that mirrors the distances wild bears travel. This represents profound psychological suffering. Even well-designed modern exhibits rarely approach the scale that would satisfy this species' needs. The welfare argument for keeping polar bears in captivity at all is questioned by many experts, with legitimate debate about whether conservation value justifies the welfare cost.