Otters in zoos and aquariums are among the most visitor-popular exhibits, but their high activity levels, social complexity, and water requirements create significant welfare management challenges.
Otter welfare in captive settings varies enormously by species, facility quality, and social management. Giant river otters — which naturally live in large family groups with complex social hierarchies — are among the most socially demanding species to house appropriately; pair housing is profoundly inadequate for animals whose social lives include cooperative hunting, group defense, and complex vocalizations. Asian small-clawed otters, while more tolerant of smaller group sizes, require constant foraging enrichment to prevent behavioral deterioration. The Asian otter pet trade has created a conservation and welfare crisis: wild-caught otters are kept in inadequate conditions by inexperienced owners, while social media exposure of "cute" pet otters drives further demand. Educating the public about otter welfare needs and opposing the exotic pet trade are complementary welfare priorities.