Gibbons are highly social, acoustically complex primates whose welfare in captivity depends critically on appropriate social housing and space.
Gibbon welfare in zoos turns on three pillars: appropriate social pairing, acoustic expression, and brachiation space. Pair bonds in captivity are complex — incompatible pairings cause chronic social stress and injury — while single housing creates isolation distress for a species evolved for lifelong monogamous partnership. Facilities that allow natural dawn calling, even if modified to avoid community noise complaints, support behavioural integrity. Space requirements for brachiation are substantial; gibbons in small, low-height enclosures develop limb muscle atrophy from disuse. Best-practice facilities match gibbons in pairs or family groups, provide tall climbing structures, and offer olfactory and foraging enrichment to occupy the full active day.