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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.
Orcinus is a genus of Delphinidae, the family of carnivorous marine mammals known as dolphins. It includes the largest delphinid species, Orcinus orca, known as the orca or killer whale. Two extinct species are recognised, Orcinus paleorca and O. citoniensis, describing fossilised remains of the genus. [2]
Two dwarf species, named Orcinus nanus and Orcinus glacialis, were described during the 1980s by Soviet researchers, but most cetacean researchers are skeptical about their status, and linking these directly to the types described below is difficult. [2] Some examples of variations in orcas
The scientists had previously documented orcas (Orcinus orca) in the region chasing both dusky dolphins and long-beaked common dolphins (Delphinus capensis). However, this new observation is the ...
Killer Whales: the natural history and genealogy of Orcinus orca in British Columbia and Washington (2nd ed.). Vancouver, BC: UBC Press. ISBN 9780774808002. Olesiuk, P. F.; Bigg, M. A.; Ellis, G. M. (1990). "Life History and Population Dynamics of Resident Killer Whales (Orcinus orca) in the Coastal Waters of British Columbia and Washington State".
Articles relating to the Orcinus, a genus of Delphinidae, the family of carnivorous marine mammals known as dolphins. It includes the largest delphinid species, Orcinus orca, known as the orca or killer whale. Two extinct species are recognised, Orcinus paleorca and O. citoniensis, describing fossilised remains
Orcinus species, like many other predatory marine lineages, may have fished up the food chain, with the apparently more primitive O. citoniensis able to hunt large fish, and the modern killer whale's ability to hunt large whales.
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 [1] [2] It may be superseded by Delphinidae.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.