Modern welfare science increasingly emphasizes promoting positive experiences — pleasure, engagement, and joy — not just preventing suffering; this shift transforms how we assess and improve animal lives.
The welfare science consensus has shifted from a minimalist framework — prevent the worst harms — to an aspirational one: actively create conditions where animals can experience joy, curiosity, social comfort, and physical pleasure. This shift matters practically. An animal free of disease and injury but bored, isolated, and understimulated may score well on traditional welfare metrics yet have a poor quality of life. Positive welfare frameworks demand that farms, zoos, labs, and shelters ask not just what we are preventing but what positive experiences we are enabling.