While killer whales (Orcinus orca) can trigger the immediate departure of white sharks (Carcharodon carcharias), extended absences from their aggregation sites are also part of the sharks' natural ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations called ecotypes. Each ecotype indicates an ecological specialization with its ...

And you thought your job was bad. Trainers at a marine zoo in southern France say they have to manually sexually stimulate a male killer whale once a month to prevent him from inbreeding with his ...

SeaWorld Orlando officials announced the death Sunday of a 50-year-old killer whale named Katina. “Her health had begun to significantly decline as she entered her geriatric years,” the theme park ...

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'Amongst all the different killer whale populations around the world, there's only a couple that have been observed doing this behavior,' one expert said Francois Gohier/VW Pics/Universal Images Group ...

Scientists confirmed that West Coast transient killer whales actually form two separate groups split between inner and outer coastal habitats. Inner-coast whales hunt smaller prey in shallow, ...

LĀNA‘I, Hawai‘i (Island News) -- A heartbreaking discovery off Lāna‘i this week. Researchers with Cascadia Research Collective found an endangered false killer whale severely entangled in marine ...