Primate welfare in zoos requires managing highly complex social species with cognitive abilities that create both rich welfare experiences and particular vulnerability to captivity-related problems.
Primate welfare in zoo settings is shaped primarily by social environment quality, cognitive enrichment, and the quality of human-animal relationships. The cognitive complexity that makes primates interesting to visitors also makes them particularly vulnerable to welfare compromise in inadequate captive environments — boredom and social deprivation manifest as behavioral abnormalities that indicate genuine psychological suffering. Well-designed zoo primate programs provide appropriate social groupings, extensive foraging and problem-solving enrichment, naturalistic space with vertical and horizontal complexity, and positive reinforcement training that gives individuals some control over their interactions with keepers. These investments require significant resources but produce demonstrably better welfare outcomes and longer-lived, healthier animals.