A dolphin is an aquatic mammal within the infraorder Cetacea. Dolphin species belong to the families Delphinidae, Platanistidae, Iniidae, Pontoporiidae, and possibly extinct Lipotidae. There are 40 extant species named as dolphins.
The orca, or killer whale, is a toothed whale that is the largest member of the oceanic dolphin family. It is the only extant species in the genus Orcinus. Orcas are recognizable by their black-and-white patterned body. A cosmopolitan species, they are found in diverse marine environments, from Arctic to Antarctic regions to tropical seas.
Porpoises are small dolphin-like cetaceans classified under the family Phocoenidae. Although similar in appearance to dolphins, they are more closely related to narwhals and belugas than to the true dolphins. There are eight extant species of porpoise, all among the smallest of the toothed whales. Porpoises are distinguished from dolphins by their flattened, spade-shaped teeth distinct from the conical teeth of dolphins, and lack of a pronounced beak, although some dolphins also lack a pronounced beak. Porpoises, and other cetaceans, belong to the clade Cetartiodactyla with even-toed ungulates.
Marine mammals are mammals that rely on marine (saltwater) ecosystems for their existence. They include animals such as cetaceans, pinnipeds, sirenians, sea otters and polar bears. They are an informal group, unified only by their reliance on marine environments for feeding and survival.
Oceanic dolphins or Delphinidae are a widely distributed family of dolphins that live in the sea. Close to forty extant species are recognised. They include several big species whose common names contain "whale" rather than "dolphin", such as the Globicephalinae. Delphinidae is a family within the superfamily Delphinoidea, which also includes the porpoises (Phocoenidae) and the Monodontidae. River dolphins are relatives of the Delphinoidea.
The toothed whales are a parvorder of cetaceans that includes dolphins, porpoises, and all other whales possessing teeth, such as the beaked whales and sperm whales. 73 species of toothed whales are described. They are one of two living groups of cetaceans, the other being the baleen whales (Mysticeti), which have baleen instead of teeth. The two groups are thought to have diverged around 34 million years ago (mya).
Keiko was a male orca captured in the Atlantic Ocean near Iceland in 1979. He was best known for his portrayal of Willy in the 1993 film Free Willy. In 1996, Warner Bros. and the International Marine Mammal Project collaborated to return Keiko to the wild. After years of preparing Keiko for reintegration, Keiko was flown to Iceland in 1998 and in 2002, became the first captive orca to be fully released back into the ocean. On 12 December 2003, he died of pneumonia in a bay in Norway at the age of 27.
SeaWorld is an American theme park chain with headquarters in Orlando, Florida. It is a proprietor of marine mammal parks, oceanariums, animal theme parks, and rehabilitation centers owned by United Parks & Resorts. The parks feature orcas, sea lion, and dolphin shows and zoological displays featuring various other marine animals.
Marineland of the Pacific was a public oceanarium and tourist attraction located on the Palos Verdes Peninsula coast in Los Angeles County, California. Architect William Pereira designed the main structure. It was also known as Hanna-Barbera's Marineland during the late 1970s and early 1980s. Marineland operated from 1954 until 1987, when it was purchased by the owners of SeaWorld San Diego. The new owners moved the popular killer whales and other animals to their San Diego facility and abruptly closed Marineland.
A dolphinarium is an aquarium for dolphins. The dolphins are usually kept in a pool, though occasionally they may be kept in pens in the open sea, either for research or public performances. Some dolphinariums consist of one pool where dolphins perform for the public, others are part of larger parks, such as marine mammal parks, zoos or theme parks, with other animals and attractions as well.
The Vancouver Aquarium is a public aquarium located in Stanley Park in Vancouver, British Columbia, Canada. In addition to being a major tourist attraction for Vancouver, the aquarium is a centre for marine research, ocean literacy education, climate activism, conservation and marine animal rehabilitation.
Marineland, is a themed zoo and amusement park in Niagara Falls, Ontario, Canada. The park has performing marine animal shows, exhibits of marine and land animals, and amusement rides. It keeps dolphins, sea lions, and beluga whales. Until 2023, the park also kept walruses and orcas. The park also keeps bears, deer, and other land animals. It was founded and operated by John Holer, a Slovenian immigrant, from 1961 until his death in 2018. It is privately owned and operated by his family.
The Miami Seaquarium is a 38-acre (15 ha) oceanarium located on the island of Virginia Key in Biscayne Bay, Miami-Dade County, Florida located near downtown Miami.
An oceanarium can be either a marine mammal park, such as Marineland of Canada, or a large-scale aquarium, such as the Lisbon Oceanarium, presenting an ocean habitat with marine animals, especially large ocean dwellers such as sharks.
Canada's Accredited Zoos and Aquariums is an accreditation and advocacy organization representing zoos and aquariums within Canada. The organization states that its member zoos and aquariums care for more than 100,000 individual animals representing over 2000 species of wildlife, observed by an estimated 11 million visitors each year. The organization is a member of the International Union for Conservation of Nature and the World Association of Zoos and Aquariums.
Dozens of orcas are held in captivity for breeding or performance purposes. The practice of capturing and displaying orcas in exhibitions began in the 1960s, and they soon became popular attractions at public aquariums and aquatic theme parks due to their intelligence, trainability, striking appearance, playfulness, and sheer size. As of 1 January 2024, around 59 orcas are in captivity worldwide, 35 of which were captive-born. At that time, there were 18 orcas in the SeaWorld parks.
Morgan is a female orca who was rescued in the Wadden Sea, off the northwestern coast of the Netherlands in June 2010. She was found in an unhealthy condition, severely underweight and malnourished. She lived several months at the Dolfinarium Harderwijk in the Netherlands. After it became clear that the basin at Dolfinarium was too small, multiple options were considered, including releasing Morgan and transferring her to another facility. Over a year later, after litigation and debate between scientists, a Dutch court ruled that she was to be moved. Morgan was transported to the Loro Parque in Spain in November 2011.
The Ending the Captivity of Whales and Dolphins Act is an act of the Parliament of Canada. Passed into law in 2019, the Act bans the capture and keeping in captivity of cetaceans. There is a grandfather clause for cetaceans in captivity when the law first came into force, and other exceptions, such as where a provincial government has issued a licence to keep cetaceans for research purposes.
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World laws on dolphinariums / marine mammal captivity
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Nationwide ban on dolphinariums/marine mammal captivity
De facto nationwide ban on dolphinariums/marine mammal captivity due to strict regulations
Some subnational bans on dolphinariums/marine mammal captivity
Dolphinariums/marine mammal captivity are currently being phased out ahead of a nationwide ban
Dolphinariums/marine mammal captivity legal
No data Dolphinarium bans world map.svg](http://upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Dolphinarium_bans_world_map.svg/350px-Dolphinarium_bans_world_map.svg.png)
