Pigs are among the most cognitively complex animals in agriculture. Understanding their intelligence and emotional sophistication strengthens the welfare case for improved farming standards.
The cognitive sophistication of pigs makes the standard conditions of industrial pig farming particularly troubling from a welfare perspective. Animals capable of complex social reasoning, emotional contagion, and long-term memory experience confinement, social disruption, and environmental deprivation in ways that go beyond physical discomfort. Enriched environments, stable social groups, and later weaning ages are not just nice-to-haves for such animals — they are requirements for meeting basic welfare needs of a cognitively complex species.