Pigs are among the most cognitively sophisticated animals raised for food. Understanding their intelligence is essential for evaluating the welfare implications of how they are housed and treated.
The cognitive sophistication of pigs creates a direct welfare implication: animals capable of complex learning, social relationships, and emotional states experience more profound suffering in barren, constrained environments than a less sentient animal would. Gestation crates that prevent sows from turning around, barren concrete floors that frustrate rooting drives, and high stocking densities that make normal social behavior impossible are not merely suboptimal — for animals of this cognitive complexity, they represent a significant deprivation of meaningful experience. The science of pig cognition is increasingly used in welfare advocacy to argue for enrichment requirements, space allowances, and social housing standards that reflect the full scope of their behavioral and psychological needs.