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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.
The U.S. National Marine Fisheries Service listed this distinct population segment of orcas as endangered, effective from 2005, under the Endangered Species Act. [2] In Canada the SRKW are listed as endangered on Species at Risk Act Schedule 1. [3] They are commonly referred to as "fish-eating orcas", "southern residents", or the "SRKW population".
Three to five types of orcas may be distinct enough to be considered different races, [1] subspecies, or possibly even species [2] (see species problem). 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 ...
A killer whale was spotted balancing a salmon on its head earlier this fall near the coastline in Washington state, surprising scientists and intriguing orca watchers. The critically endangered ...
Killer whales play an important role in our ocean's ecosystem. Female orcas can live up to 90 years, and male orcas live up to 60 years. Whales can communicate through sounds ranging from clicks ...
An endangered orca vanished from a dwindling whale pod off the Washington coast, a conservation group said. The missing Southern Resident killer whale, K-26, was not seen by researchers during an ...
Although the orca is not an endangered species, some populations are threatened or endangered due to bioaccumulation of persistent organic pollutants, depletion of prey populations, captures for marine mammal parks, conflicts with fishing activities, acoustic pollution, shipping vessels, stress from whale-watching boats, and habitat loss.
Killer whales have reportedly attacked more than 500 boats in European waters recently. Are they exacting revenge for humanity's treatment of orcas? Why are killer whales going 'Moby-Dick' on ...