Research on pig cognition and emotional complexity has profound implications for how we think about pig welfare in agricultural settings.
The cognitive and emotional research on pigs challenges the widespread treatment of them as mere production units. Pigs that can recognize themselves in mirrors, deceive competitors, play complex games, and show emotional contagion are experiencing their environments in ways that matter morally. The welfare implications of keeping such animals in barren gestation crates, tiny farrowing crates, and overcrowded finishing pens are substantial. A pig in a barren crate cannot forage, explore, play, or engage in social navigation — behavioral needs that its cognitive sophistication demands. The research doesn't just suggest that pigs suffer in poor conditions; it suggests they flourish in good ones, and that flourishing is within reach through system changes that are technically feasible.