Meeting the complex welfare needs of sun bears in captivity, the world smallest bear species with specialized behavioral and dietary requirements.
Sun bear welfare in captivity requires addressing their unique combination of arboreal behavior, specialized foraging, and dietary needs. Enclosures must provide both climbing structures and ground-level complexity, with substrate that allows digging and foraging behaviors. Their long tongue and foraging instinct should be engaged through enrichment including honey-based puzzle feeders, termite mounds, and buried food items. Diet should include fruit, insects, small vertebrates, and honey as part of a varied intake that reflects wild omnivory. Social management needs careful assessment of individual compatibility; while more tolerant than some bears, sun bears can be aggressive toward conspecifics in resource-limited settings. Sun bear bile farming, in which bears are caged and subjected to repeated bile extraction, represents one of the most severe forms of animal cruelty in Asia.