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The primary diet of transient orcas includes harbor seals, Steller sea lions, harbor porpoises, Dall's porpoises, Pacific white-sided dolphins, and Minke whales. Among these, the harbor seal is the most common prey; one survey estimated that more than half of the diet of transients in the Salish Sea region consists of harbor seals. [ 16 ]
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]
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.
The research vessel Noctiluca of the Northwest Fisheries Science Center in close proximity to an orca. The southern resident orcas, also known as the southern resident killer whales (SRKW), are the smallest of four communities of the exclusively fish-eating ecotype of orca in the northeast Pacific Ocean.
Like the Southern residents, the Northern residents live in groups of matrilines. A typical Northern resident matriline group consists of an elder female, her offspring, and the offspring of her daughters. Both males and female orcas remain within their natal matriline for life. [4] Matrilines have a tendency to split apart over time. [3]
Animal lovers are fighting to move killer whales Wikie and Keijo to a sea sanctuary in Canada After helping Free Willy taste freedom , Dave Phillips is working to give two other orcas a life ...
More than 50 years after being captured in the Pacific Ocean and held for decades at the Miami Seaquarium, a plan to return Lolita the Orca to "home waters" to live out the rest of her days was ...
Orcinus orca and its range (in blue) In biogeography , a cosmopolitan distribution is the range of a taxon that extends across most or all of the surface of the Earth, in appropriate habitats ; most cosmopolitan species are known to be highly adaptable to a range of climatic and environmental conditions, though this is not always so.