Research confirming pig intelligence comparable to dogs and young children has profound implications for how we evaluate the welfare impacts of standard farming practices.
The cognitive and emotional sophistication of pigs makes intensive confinement farming ethically more troubling than commonly acknowledged. Sows in gestation crates cannot turn around, engage in rooting, or form social bonds — a particularly profound deprivation given their intelligence and social nature. Pigs in barren environments develop stereotypic behaviors and show negative cognitive biases — pessimistic expectations about outcomes — consistent with chronic negative emotional states. Recognizing pig sentience demands proportionally higher welfare standards than those commonly applied in commercial production.