Gorillas are among the most cognitively complex zoo animals, with rich social lives and emotional depth that make captive management particularly challenging and ethically weighty.
Gorillas in poor zoo conditions develop behavioral abnormalities including repetitive rocking, self-directed behavior, and social dysfunction. Their emotional complexity means that loss of group members, transfers between institutions, and management changes cause genuine psychological distress. The best gorilla exhibits provide large naturalistic spaces with multiple social options, browsing and foraging opportunities, and access to private areas away from public view. Gorillas that choose when to be visible to visitors demonstrate greater agency and better welfare.