Cephalopods are among the most cognitively complex invertebrates, with growing evidence of pain experience and sentience warranting formal welfare protection.
Cephalopods demonstrate clear indicators of sentience including pain avoidance, wound guarding, analgesic seeking, and learning. Their advanced nervous systems suggest subjective experience qualitatively different from other invertebrates. Current wild-capture methods including trawling cause prolonged stress and injury. The proposal for commercial octopus farming (banned in several jurisdictions on welfare grounds) would create conditions incompatible with their welfare needs. Regulatory protection remains inconsistent globally.