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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 ]
As with residents and transients, the lifestyle of these whales appears to reflect their diet; fish-eating orcas off Norway have resident-like social structures, while mammal-eating orcas in Argentina and the Crozet Islands behave more like transients. [121] Orcas of the same sex and age group may engage in physical contact and synchronous ...
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 Free Morgan Foundation is a non-profit charity that advocates the release of Morgan, a female orca held at Loro Parque in Tenerife, Canary Islands. [1] [2] [3] The foundation is made up of a number of independent international experts representing numerous orca research and education organisations, including Orcalab, Orca Network, Orca Research Trust, Centre for Whale Research, and Project ...
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.
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.
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 ...
Dall's porpoises are prey to transient killer whales. [16] They have, however, been observed in association with resident killer whales, engaging in apparent play behaviors with their calves, and swimming with them. [17] One recognizable Dall's porpoise was observed travelling with the AB pod of resident orca from May through October 1984. [17]