Legal recognition of animal sentience is a foundational step toward meaningful welfare protection and is advancing rapidly worldwide.
Legal recognition of animal sentience is not merely symbolic — it creates a framework through which courts, regulators, and governments must consider animal welfare in decision-making. The practical impact depends on implementation: the EU's sentience provision has influenced policy on fur farming, live transport, and cage housing, while weak implementation elsewhere has produced little change. The most consequential recent development is the UK's sentience legislation, which requires active government consideration of animal welfare impacts across all policy areas and established an independent committee to advise on this. Extending sentience recognition to invertebrates — including crustaceans, as the UK has done — represents a significant expansion of the moral and legal circle.