Chimpanzees are among the most cognitively complex animals on Earth, and their welfare in captivity depends on opportunities for tool use, problem-solving, and social learning.
Chimpanzee welfare in captivity is inseparable from the opportunity to exercise their extraordinary cognitive abilities. A chimpanzee in a barren enclosure with no behavioral challenges, no tools, and no complex social interactions is experiencing a profound deprivation — not just of comfort, but of the cognitive and social engagement that constitutes their entire world in the wild. High-welfare chimpanzee facilities provide permanent access to enrichment systems that require tool use, problem-solving, and cooperation; large, complex social groups; indoor-outdoor access with vertical complexity; and keeper relationships built on positive training. Welfare assessment must include behavioral indicators of positive states — play, exploration, social affiliation — not just the absence of visible distress.