Scientific evidence of pig intelligence is compelling and directly challenges the ethics of current intensive farming practices. What does pig cognition mean for their welfare?
The scientific case for pig intelligence is now well-established and has profound welfare implications. If pigs can experience optimism and pessimism, form individual social bonds, recognise faces, play, and exhibit empathy, then current intensive housing systems — barren concrete pens, social instability from frequent regrouping, no substrate enrichment — represent a systematic failure to meet their cognitive and emotional needs. Welfare science increasingly frames this not just as preventing suffering but as enabling positive experience: play, exploration, social bonding, and environmental mastery. The gap between what we know about pig cognition and how we treat pigs commercially is one of the largest ethical inconsistencies in modern food production.