The welfare science behind captive orca suffering and why marine parks cannot meet their needs.
Captive orca welfare represents one of the clearest cases where no level of husbandry investment can meet the fundamental needs of the species. Orcas evolved for vast ocean environments with complex family structures, long-distance travel, and sophisticated cooperative hunting. Tanks that represent a fraction of a percent of their daily range, combined with artificial social groupings that disrupt natural family bonds, create conditions of chronic deprivation that manifest in measurable physiological and behavioral indicators of suffering. The welfare argument against captive orca programs is now essentially settled scientifically.