Polar bears are among the most challenging animals to maintain with adequate welfare in zoos. Their vast ranging needs and specialized hunting behaviors cannot be replicated in captivity.
Polar bear welfare in zoos is constrained by a fundamental mismatch between their behavioral biology and what captive facilities can provide. The absence of sea ice hunting means the species' core foraging motivation — the central organizing principle of wild polar bear life — cannot be expressed. Enrichment can redirect this motivation but not satisfy it. The resulting stereotypic behaviors (pacing, repetitive swimming) are welfare indicators that persist regardless of enclosure quality. Some animal welfare organizations argue that polar bears should not be kept in zoos outside Arctic range countries. The climate change crisis creates genuine conservation arguments for ex-situ programs, but these must grapple honestly with the welfare costs involved.