Environmental enrichment programs for zoo animals have transformed welfare standards at leading facilities, with evidence-based approaches improving both animal welfare and visitor experience.
Animals in well-enriched zoo environments show measurably lower rates of stereotypic behavior, higher rates of natural behavior, and improved physiological welfare indicators including lower stress hormone levels. Foraging enrichment that requires animals to work for food mimics the behavioral demands of natural foraging and occupies animals for much longer periods than food presented in bowls. The evidence base for zoo enrichment has grown substantially, enabling evidence-based design of enrichment programs rather than ad-hoc item provision. Training for voluntary participation in veterinary care represents a paradigm shift from forced restraint.