The most influential modern advocate of this view is philosopher Peter Singer (who argues from a utilitarian perspective for equal consideration of interests) and legal scholar Tom Regan (who argues that animals are "subjects of a life" with inherent value). An animal rights position would typically oppose:
Mammals, birds, and increasingly recognized organisms like cephalopods (octopuses) and decapod crustaceans (crabs and lobsters) possess sentience. This means they can experience positive and negative emotional states, including joy, affection, fear, anxiety, and physical pain. Studies show that pigs can play video games, crows can manufacture tools, and elephants mourn their dead. This growing body of evidence forces society to expand its circle of moral consideration. Critical Frontiers in Animal Advocacy The most influential modern advocate of this view
Many organizations, activists, and individuals are working tirelessly to promote animal welfare and rights. Some notable examples include: Studies show that pigs can play video games,
Overpopulation leads to millions of healthy animals being euthanized in shelters annually. Furthermore, irresponsible commercial breeding operations ("puppy mills") prioritize profit over genetic health and maternal welfare. crows can manufacture tools