SEATTLE —For more than a century, killer whales have been understood to be just one worldwide species, Orcinus orca, with many types. But now, after decades of work, scientists have determined the ...

Scientists say they discovered that two well-known types of killer whales in the North Pacific Ocean are actually two separate species and not just different races. In a study published Wednesday, ...

Aerial image of Southern Resident killer whales taken in the Salish Sea off southern Vancouver Island during health research by SR3 SeaLife Response, Rehabilitation and Research. Images by John Durban ...

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A new orca whale calf was spotted by members of the Center for Whale Research alongside its mother, according to a press release from the organization.

Diet: Orca pods will often specialise in one type of prey, but they can feed on fish, seals, dolphins, sharks, rays, whales, octopuses and squid. 'From a scientific perspective, this [advice from ...

Orca and human brains have similar features that give them high-functioning abilities like empathy. Orcas also have a high sense of self-awareness, which they use to develop unique hunting tactics.

The rare sight of a group of offshore killer whales tearing a live shark apart has been captured on film by a drone. Slater Moore was whale-watching when he spotted the two females and two calves in ...

FLAGLER COUNTY, Fla. — Days after an orca was found beached in Flagler County, experts were able to identify what led to the death of the animal. The orca whale, described as being older, died onshore ...