Modern animal welfare science increasingly recognizes that good welfare requires positive experiences, not merely the absence of negative ones.
The shift toward positive welfare thinking is one of the most important developments in animal welfare science. For decades, welfare was assessed primarily by the absence of negative states: pain, fear, hunger, disease. But animals can be free from suffering while still living impoverished lives without meaningful experiences, social relationships, or behavioral expression. Positive welfare science asks what animals need to thrive, not merely what they need to avoid suffering — and finds that the gap between minimal negative-welfare standards and genuine thriving is enormous for most farmed and captive animals.