Growing scientific evidence that lobsters and other crustaceans feel pain has prompted serious welfare debates about live boiling and transport practices.
Lobsters placed in boiling water while alive show distress behaviors including tail flipping that indicate an aversive experience consistent with pain. Neurological research has found nociceptors and stress hormone analogs in crustaceans. The UK Animal Welfare Sentience Act 2022 included decapod crustaceans based on this evidence. Long transport in cramped tanks with rubber-banded claws prevents feeding and causes stress. The precautionary principle strongly supports adopting humane killing methods.