The growing scientific evidence for pig intelligence and its direct implications for how we evaluate and improve farm pig welfare.
Pig intelligence research has moved from curiosity to moral urgency. The evidence that pigs have rich cognitive and emotional lives — that they remember, communicate, feel optimism and pessimism, experience social bonds and social pain — fundamentally changes the ethical weight of their use in factory farming systems. A cognitively sophisticated animal confined in barren, unstimulating conditions designed for production efficiency experiences deprivation in a deeper sense than a simpler animal would. The welfare implications are clear: enrichment, social complexity, behavioral opportunity, and positive human-animal relationships are not optional additions to pig welfare — they are core requirements for morally defensible pig farming.