New research confirms two distinct groups of West Coast killer whales with different diets, habitats, and behaviors.

(Editor's Note: This story has been altered. The original version of this story misidentified Terry Wright of the Northwest Indian Fisheries Commission.) Imagine someone coming to your neighborhood ...

Monika Wieland Shields, Director of the Orca Behavior Institute, has observed orcas in the Salish Sea, a marginal sea of the Pacific Ocean located in the Canadian province of British Columbia and the ...

Join me as we explore the breathtaking experience of whale watching in Norway, featuring some of the best encounters with ...

The latest survey of endangered southern resident killer whales confirms their plateau and gradual slide toward disappearance ...

The Miami Seaquarium announced in March that the orca was set to be returned to the waters in the Pacific Northwest after 53 years in captivity Jeff Greenberg/Universal Images Group via Getty Lolita, ...

Orcas in the Gulf of California off the coast of Mexico have been spotted hunting young great white sharks by flipping them ...

Despite initial optimism about its condition, J-64 has not been seen since October 23, when researchers saw all 27 members of ...

Orcas, or killer whales, are deadly and beautiful apex predators. Family mourns 18-year-old who died on Carnival cruise ship ...

Seven minutes into the video, the whales attacked a second juvenile white shark. This one was worked over repeatedly until ...