Orangutans are the most arboreal of the great apes, requiring extensive climbing structures and cognitive enrichment to maintain good welfare in captivity.
Orangutans in barren enclosures that lack climbing opportunities and cognitive challenge show high rates of stereotypic behaviour and psychological distress. Meeting their unique needs requires extensive vertical space with complex climbing structures and high-level enrichment. Conservation messaging connecting captive orangutan welfare to wild habitat protection creates value beyond the individual animal.