Research on pig cognition has revealed a level of intelligence comparable to dogs and primates, with profound implications for how we evaluate and improve pig welfare in farming systems.
Cognitive research on pigs has fundamentally challenged the assumption that these animals have simple, vegetative inner lives requiring only physical care. A pig in a barren concrete slab with no enrichment, no social stimulation beyond pen-mates under the same deprivation, and no opportunity to learn or solve problems is experiencing cognitive poverty as surely as a person in sensory isolation. Welfare frameworks that incorporate positive welfare — not just freedom from negative states but the presence of positive experiences including play, curiosity, and learning — require environments that provide cognitive challenge for species as intelligent as pigs. The alignment between cognitive complexity research and welfare is powerful: every study demonstrating pig intelligence strengthens the case for welfare standards that treat pigs as complex beings rather than units of protein production. Consumer awareness of pig cognition is an important lever for building the political will to improve welfare standards.