The complex welfare science and ethics of keeping cetaceans in captivity, covering behavioral needs, pool limitations, social requirements, and the evolving position of accreditation bodies.
Cetacean captivity represents one of the most ethically contested areas in zoological practice. The welfare arguments against captivity are compelling: the vast spatial requirements of wild cetaceans, their complex social bonds maintained over decades, their extraordinary cognitive capacity and cultural complexity, and the behavioral indicators of welfare compromise documented in captive animals all point toward fundamental incompatibility between captivity and adequate welfare. The welfare arguments for captivity are less compelling than for most other zoo species: unlike terrestrial megafauna where habitat loss and poaching create genuine conservation emergencies, most captive cetacean programs contribute minimally to wild population conservation. The scientific and public consensus has shifted substantially: orca captive breeding is now widely regarded as ethically unjustifiable even within much of the zoological community. Bottlenose dolphin captivity remains more contested. The emerging model of large seaside sanctuaries for retired captive cetaceans — providing significantly more naturalistic environments than concrete pools while maintaining veterinary care — represents a meaningful welfare improvement pathway for existing captive populations.