Cephalopods including octopuses and cuttlefish are increasingly used in neuroscience research, with their welfare now explicitly recognized in EU legislation as requiring consideration comparable to vertebrate research animals.
The EU recognition of cephalopod welfare in research reflects a growing scientific consensus that octopuses, cuttlefish, and squid have cognitively complex enough nervous systems to warrant welfare consideration. Octopuses particularly show rapid health decline when chronically stressed, making welfare management not merely an ethical obligation but a practical research quality requirement. Developing cephalopod-specific welfare assessment tools is an emerging priority in laboratory animal welfare science.