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Dorsal fin


A dorsal fin is a fin located on the backs of various unrelated marine and freshwater vertebrates, including most fish, cetaceans (whales, dolphins, and porpoises), and the (extinct) ichthyosaurs. Depending on the species, an animal may have one or two of them.

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  • This page was last modified on 19 May 2014, at 01:36.
  • This page has been accessed 281 times.