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Among the three rescues, one (father of world's first harbour porpoise born in captivity) lived for 20 years in captivity, another for 15 years, [32] [33] while the third (mother of first born in captivity) is the world's oldest known harbour porpoise, being 28 years old in 2023. [34] The typical age reached in the wild is 14 years or less.
The harbour porpoise (Phocoena phocoena) is one of eight extant species of porpoise. It is one of the smallest species of cetacean . As its name implies, it stays close to coastal areas or river estuaries, and as such, is the most familiar porpoise to whale watchers .
Dall's porpoise (Phocoenoides dalli) is a species of porpoise endemic to the North Pacific. It is the largest of porpoises and the only member of the genus Phocoenoides. The species is named after American naturalist W. H. Dall. William Healey Dall's 1873 field notes on Phocoenoides from the Smithsonian Institution's Field Books collection
Cetacea is an infraorder that comprises the 94 species of whales, dolphins, and porpoises.It is divided into toothed whales (Odontoceti) and baleen whales (Mysticeti), which diverged from each other in the Eocene some 50 million years ago (mya).
The spectacled porpoise (Phocoena dioptrica) is a small to midsize porpoise indigenous to the Southern Ocean. It is one of the most poorly studied cetaceans, partly due to its remote range in the Southern Ocean.
The Yangtze finless porpoise (Neophocaena asiaeorientalis) is a species of toothed whale in the family Phocoenidae, the porpoise family.It is endemic to the Yangtze River in China, making it the country's only known freshwater cetacean following the possible extinction of the baiji (Lipotes vexillifer), a freshwater dolphin also native to the Yangtze. [3]
Burmeister's porpoise (Phocoena spinipinnis) is a species of porpoise endemic to the coast of South America. [1] It was first described by Hermann Burmeister , for whom the species is named, in 1865.
Neophocaena is a genus of porpoise native to the Indian and Pacific oceans, as well as the freshwater habitats of the Yangtze River basin in China. They are commonly known as finless porpoises. Genetic studies indicate that Neophocaena is the most basal living member of the porpoise family. [2] There are three species in this genus: [3] [4]