Gorillas are highly intelligent great apes whose cognitive and physical welfare needs require sophisticated enrichment programmes. Understanding what good gorilla enrichment looks like helps evaluate zoo quality.
Gorilla enrichment must address both their physical needs and their considerable cognitive complexity. Foraging enrichment that requires extended searching, manipulation, and problem-solving engages their intelligence in ways that food presentation on a plate never can. Browse provision satisfies both nutritional needs and the oral and manipulative behaviours associated with natural foraging. Social group management is the most fundamental enrichment, as the quality of gorilla social life determines much of their daily welfare experience. Training programmes that give gorillas voluntary control over participation in healthcare procedures, and that build positive associations with keeper interactions, provide cognitive engagement and welfare benefits simultaneously. The most sophisticated gorilla programmes provide an ever-rotating array of novel challenges that maintain engagement across many years of captive life.