Zoos claim a conservation education mission, but research on whether zoo visits change visitor attitudes and conservation behavior is mixed. Understanding what works helps direct welfare justifications appropriately.
The educational and conservation justification for zoos rests on an empirical claim — that zoo visits change visitor attitudes and behavior in ways that benefit wildlife conservation — that deserves honest evaluation. Research supports that zoo visits increase awareness and willingness to donate to conservation causes; evidence for sustained behavioral change (reduced consumption, advocacy, donations) is weaker and more context-dependent. The most welfare-relevant implication is that education programs that produce genuine behavior change provide stronger ethical justification for keeping animals in captivity than those that merely entertain. Investing in high-quality, behavior-change-oriented education programs — live interpretive talks, keeper demonstrations, citizen science engagement — strengthens the ethical case for zoo welfare costs while also improving visitor experience and conservation outcomes.