Warthogs are robust, adaptable African wild pigs that thrive in appropriate zoo settings, but their welfare depends on understanding their natural ecology and providing soil-rooting, social interaction, and thermoregulatory opportunities.
Warthog welfare in zoo settings is often underappreciated because the species adapts relatively well to captivity and presents fewer dramatic welfare problems than large carnivores or primates. However, meeting their foraging drive is critical: warthogs deprived of rooting opportunities will root compulsively at enclosure walls, fencing, and substrate in a stereotypic manner. Wallowing facilities must provide genuinely wet mud, not just water pools, to serve thermoregulatory and skin health functions. Social housing is important — single warthogs show elevated stress and abnormal behaviours. Feeding enrichment should encourage the kneeling foraging posture through scatter feeding, buried food, and shallow trays requiring rooting. Warthogs that appear inactive and stereotypic in zoo exhibits are showing welfare signals that should prompt environmental modification rather than normalisation. Best-practice facilities provide deep substrate, varied browse, wallows, and feeding puzzles.