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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.
Bigg was the first to identify transient orcas as significantly different in eating habits, behavior, and distribution from resident orcas; hence they bear his name. His recommendation in the late 1970s that orcas be placed on the endangered list in Canada fueled interest in protecting the animals throughout the region.
"Social Organization and Genealogy of Resident Killer Whales (Orcinus orca) in the Coastal Waters of British Columbia and Washington State". Report of the International Whaling Commission (Special Issue 12). Cambridge: 383– 405. ISSN 0255-2760. Colby, Jason M. (2018). Orca: how we came to know and love the ocean's greatest predator.
To do this, McInnis and others examined sightings and photographs of 49 different orcas from 1997 to 2021 to see if they had been cataloged in any other existing orca population.
Over 2,000 individual resident-like orcas and 130 transient-like orcas have been identified off Russia. [29] At least 195 individual orcas have been cataloged in the eastern tropical Pacific, ranging from Baja California and the Gulf of California in the north to the northwest coast of South America in the south and west towards Hawaii. [31]
Orcas live with their mothers for their entire lives. Groups usually consist of mothers and their offspring, and because of their long life span (orcas can live up to ninety years), pods can often ...
Bigg's killer whales were the most frequently documented last year, and many finding food sources in the Hood Canal. Transient whales, whose Salish Sea visits are increasing, spending time in Hood ...
They live primarily off the coast of British Columbia (BC), Canada, and also travel to southeastern Alaska and northern Washington state in the United States. The northern resident population consists of three clans (A, G, R) that consists of several pods with one or more matrilines within each pod.