Gibbons are the most diverse group of apes, known for their spectacular singing and brachiation. Zoo welfare depends on appropriate pair bonding and vertical space.
Gibbon welfare is fundamentally tied to the quality of their pair bond. Losing a partner causes behavioral depression, reduced singing, and appetite loss. Exhibits that fail to provide sufficient climbing height and brachiation opportunities prevent expression of this species most essential locomotor behavior. Young gibbons raised as pets and then surrendered to sanctuaries often cannot be successfully paired with conspecifics due to developmental disruption. The gibbon pet trade is a significant welfare driver requiring both demand reduction and sanctuary capacity expansion. Zoo exhibits designed around brachiation ability, privacy, and acoustic separation from human noise substantially improve gibbon welfare.