While often used interchangeably, these two concepts represent different philosophical frameworks:
—the philosophical belief that animals have inherent interests that should be legally protected. The University of New Mexico Key Scientific and Philosophical Papers While often used interchangeably
: The 19th century saw the birth of animal protection groups like the RSPCA (1824) and ASPCA (1866). While often used interchangeably
: Governments are increasingly under pressure to "End the Cage Age." By the end of 2025, major animal welfare strategies were pledged in regions like the UK to phase out battery cages for hens and gestation crates for pigs. While often used interchangeably