The finless porpoise (Neophocaena phocaenoides) is one of six porpoise species. In the waters around Japan, at the northern end of its range, it is known as the sunameri (砂滑). A freshwater population found in the Yangtze River in China is known locally as the jiangtun (江豚) or "river porpoise". There is a degree of taxonomic uncertainty surrounding the species, with the N. p. phocaenoides subspecies perhaps representing a different species from N. p. sunameri and N. p. asiaeorientalis.
Read more about Finless Porpoise: Distribution, Physical Description, Diet, Schooling, Behaviour and Reproduction, Conservation
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