Orcas are the largest members of the dolphin family with sophisticated cultures and social structures. Their welfare in captivity has become one of the most significant animal rights controversies of recent decades.
Orca captivity welfare has become a defining debate in companion and exhibition animal ethics. The evidence of welfare compromise in captive orcas is substantial: collapsed dorsal fins, abnormal social behaviors, stereotypies, aggression toward trainers, shortened lifespans, and behavioral indicators of chronic stress. The social complexity and cultural richness of wild orca pods cannot be replicated in even the largest marine park tanks. The current generation of captive orcas cannot be released to the wild but could be transitioned to sea sanctuaries — netted ocean bays that provide greatly expanded space and natural sensory environment. The Whale Sanctuary Project is working to establish the first such facility.