Indoor cats require deliberate behavioral enrichment to express natural hunting, climbing, and exploring behaviors — without it, boredom and frustration cause significant welfare compromise.
Indoor cat welfare depends critically on enrichment that substitutes for the behavioral opportunities lost by eliminating outdoor access. Hunting, climbing, hiding, and exploring are not optional behaviors for cats — they are core expressions of feline biology. Indoor environments that provide puzzle feeding, interactive play, vertical complexity, and perching opportunities allow cats to express these behaviors safely. The welfare difference between an enriched indoor environment and a barren one is substantial, measurable in behavioral diversity, positive welfare indicators, and reduction of stress-related health problems.