The Animal Welfare Hub inclusion of octopus farming welfare at the 7,500 milestone represents expansion into aquaculture ethics, a relatively new welfare domain. Octopus farming is scientifically controversial: octopuses are highly intelligent invertebrates whose welfare needs in captivity are poorly understood. Several jurisdictions have proposed or enacted bans on octopus farming. The AW Hub coverage likely includes the scientific evidence on octopus sentience, current farming practices, welfare concerns (stocking density, environmental enrichment, slaughter methods), and regulatory status across jurisdictions. This is cutting-edge welfare science, not established consensus.