

focuses on the well-being of animals under human care. It operates on the premise that humans can use animals for food, research, and companionship, provided they are treated humanely. The "Five Freedoms"—freedom from hunger, discomfort, pain, fear, and the freedom to express normal behavior—are the gold standard for welfare.
Regan argued that animals are "subjects-of-a-life." They have beliefs, desires, memory, and a sense of the future. Because they have inherent value, they cannot be used as a means to an end—human dinner, a new lipstick, or a lab result. focuses on the well-being of animals under human care
Welfare standards have dramatically improved zoo conditions—larger naturalistic enclosures, behavioral enrichment, and veterinary care. However, rights advocates argue that captivity itself is a deprivation. An orca swimming in the largest pool in the world is still swimming in a "bathtub" relative to its wild range of 100 miles a day. The right to freedom of movement trumps the welfare gain of a vet checkup. Regan argued that animals are "subjects-of-a-life
(sufficient space and proper facilities). However, rights advocates argue that captivity itself is
Welfare standards are what dictate that a farm pig should have enough space to turn around, that a lab rat should receive pain relief, or that a zoo elephant should have enrichment to prevent "zoochosis" (repetitive, neurotic behaviors).
asks: Do animals have inherent value that exists independently of their utility to humans?