Pigs are among the most intelligent domestic animals, with cognitive abilities comparable to dogs and young children, making their confinement in intensive systems ethically significant.
Pig intelligence and emotional complexity make the conditions of intensive confinement — concrete floors, gestation crates, tail docking, and social deprivation — especially troubling. Animals with this cognitive capacity experience boredom, frustration, and social isolation as genuine welfare harms. The mismatch between pig intelligence and typical production conditions represents a major ethical challenge in food systems.