Mandrills are the world's largest monkeys and live in extraordinarily complex social groups. Their welfare in zoos depends critically on maintaining appropriate social structures and environmental richness.
Mandrill welfare in captivity requires sophisticated social management. Natural hordes of hundreds cannot be replicated in zoo settings, but the social environment must be sufficiently complex to allow expression of dominance hierarchies, coalition formation, and affiliative behaviors like grooming. Enclosures need substantial floor space for foraging enrichment, climbing structures, and retreat areas for subordinate individuals. Introductions of new individuals require careful monitoring as coalition dynamics shift. Color intensity in males is a welfare indicator — stressed subordinate males may desaturate in color. Cognitive enrichment including puzzle feeders and novel objects engages their intelligence. Mandrills are among the most expressive and socially complex of zoo animals.