Lions, tigers, leopards, and cheetahs in zoological settings require sophisticated enrichment programs to prevent the chronic stress that manifests as repetitive pacing and other stereotypic behaviors.
Big cat welfare in zoos is caught between the genuine conservation value of captive populations and the welfare costs of enclosures that cannot match the cognitive and physical demands of wild territories. The stereotypic pacing seen in a substantial majority of captive big cats is not merely an aesthetic problem — it is a behavioral indicator of chronic stress with associated physiological consequences including elevated cortisol, reduced immune function, and reproductive failure. Effective enrichment programs can reduce but not eliminate these indicators. Leading institutions invest heavily in varied, rotating enrichment that engages hunting, exploration, and marking behaviors — but even the best current programs leave a residual welfare gap relative to wild conditions. This honest assessment should inform institutional transparency about the trade-offs inherent in big cat captivity.