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Articles relating to orcas (Orcinus orca, killer whales), toothed whales that are the largest members 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.
The orca (Orcinus orca), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. It is the only extant species in the genus Orcinus and is recognizable by its black-and-white patterned body. A cosmopolitan species, it is found in diverse marine environments, from Arctic to Antarctic regions to tropical seas.
In 1900, the American naturalist Edward William Nelson described the kăk-whăn’-û-ghăt kǐg-û-lu’-nǐk among a number of other mythical and composite animals: [1]. It is described as being similar in form to the killer whale and is credited with the power of changing at will to a wolf; after roaming about over the land it may return to the sea and again become a whale.
Six species of dolphins have the word "whale" in their name, collectively known as blackfish: the orca, or killer whale, the melon-headed whale, the pygmy killer whale, the false killer whale, and the two species of pilot whales, all of which are classified under the family Delphinidae (oceanic dolphins). [6]
Orcininae is a contested subfamily of oceanic dolphins composed of 1 living and 3 extinct genera. [1] [2] It may be superseded by Delphinidae. [3]Its only extant member is the orca (Orcinus orca); all other extant genera formerly classified in it have been moved out.
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The IUCN reported in 2008, "The taxonomy of this genus is clearly in need of review, and it is likely that O. orca will be split into a number of different species or at least subspecies over the next few years." [3] However, large variation in the ecological distinctiveness of different orca groups complicate simple differentiation into types. [4]