The keeping of cetaceans including dolphins and orca in captivity is among the most controversial issues in animal welfare, with strong scientific and ethical arguments for phasing out the practice.
The behavioural complexity and spatial needs of cetaceans are fundamentally incompatible with captive environments. Captive orca show severe stereotypic behaviour, social disruption, and chronic stress indicators. The entertainment value of cetacean shows does not justify the demonstrable welfare harm. Phasing out cetacean captivity in favour of sanctuary models is supported by the scientific consensus.