Octopuses are among the most cognitively sophisticated invertebrates, capable of learning, tool use, and problem solving. Their use in research requires welfare standards commensurate with their capacities.
Octopus research welfare requires environmental enrichment appropriate to their remarkable cognitive abilities, including objects, textures, and foraging challenges. Octopuses kept in barren containers show behavioral signs of distress. Their short lifespans — most live only 1-2 years — create pressure to maximize experimental output that must be balanced against welfare obligations. The extension of formal research welfare protections to cephalopods reflects growing scientific consensus about their sentience.