Beyond preventing suffering, zoos are increasingly focused on providing positive experiences that allow animals to thrive rather than merely survive.
The shift from absence-of-suffering to presence-of-positive-experience represents a significant evolution in zoo animal welfare philosophy. Animals in well-designed habitats with social partners, cognitive challenges, and opportunities for natural behavior express behavioral repertoires much closer to wild counterparts. Measurement tools now exist for assessing positive affect in diverse taxa including elephants, primates, big cats, and birds. Institutions that systematically monitor and improve positive welfare produce measurably better outcomes.