Environmental complexity that provides sensory variety, behavioral opportunities, and predictable security enables cats to express the full range of positive welfare states rather than merely coping with deprivation.
Environmental complexity for cats is the foundation from which all other welfare benefits flow: cats in complex, stimulating environments express predatory behavior, exploratory motivation, social interaction, and positive affect that barren environments systematically deny. The welfare investment required for high-quality cat environments is modest in material terms — cat trees, window perches, varied substrates, and hiding options — but requires owner understanding of feline behavioral needs to implement effectively. Educating cat owners about environmental complexity principles transforms passive housing into active welfare provision that enables feline flourishing rather than mere survival.