Research demonstrating pig intelligence at or above the level of dogs has profound implications for how we understand and address their welfare in farming systems.
Pig intelligence research fundamentally challenges the moral permissibility of intensive confinement systems. An animal that can use a joystick, recognize itself in a mirror, and demonstrate complex emotional states is not simply responding to discomfort — it is experiencing a rich inner life that confinement, isolation, and frustration profoundly compromise. Sows performing vacuum nesting behavior on bare concrete — gathering imaginary materials with their snouts — illustrate the depth of their behavioral frustration in industrial systems. The welfare science is converging on a picture of pig cognition that, if applied consistently with how we treat other animals of similar intelligence, would transform pig farming.