The welfare of bottlenose dolphins in captive facilities has been thoroughly researched and documented, with evidence that captive conditions cause significant welfare deficits for highly intelligent, social cetaceans.
Captive dolphin welfare has been more thoroughly studied than most zoo animal welfare, and the evidence consistently points to significant welfare deficits that enrichment and management improvements cannot fully address. The intelligence and social complexity of dolphins — comparable in many respects to great apes — means that the behavioral, cognitive, and social restrictions of captive environments cause qualitative as well as quantitative welfare harm. Corporate decisions by major operators to end theatrical dolphin shows and breeding programs reflect both welfare evidence and changing public values. Sea pen retirement facilities represent a welfare improvement over conventional tanks by providing more natural acoustic environments, more natural movement patterns, and reduced forced performance, while maintaining care for animals that cannot survive independent release.