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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 ]
Download as PDF; Printable version; ... the elevation of Eastern North American resident and transient orcas as distinct ... and female (bottom) killer whales ...
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 sympatric transient (Bigg's) orcas travel in small, family groups, with individuals cooperating to kill and eat marine mammals together. [30] By contrast, the large, multi-family, multi-generation southern resident pods behave in a way that may increase their success in hunting the salmon that forms the southern resident orca diet .
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]
A pair of orca whales were spotted sharing a meal along the Channel Islands off the coast of Southern California, video uploaded on June 27 shows.Drone footage captured by Evan Brodsky shows the ...
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