Octopuses are increasingly used in neuroscience and behavioural research, and their high cognitive complexity requires welfare standards that go beyond typical invertebrate research protocols.
Octopus research welfare sits at a rapidly evolving frontier: regulatory inclusion confirms their sentience is taken seriously, but the practical welfare procedures — humane endpoints, appropriate anaesthesia, enrichment standards — are less developed than for vertebrates. Octopuses in research settings require complex environments that engage their high intelligence; barren tanks with no stimulation cause behavioural deterioration. The welfare investment in octopus research care is justified both by the animals' evident cognitive sophistication and by the quality of research that enriched, unstressed animals produce.