Three mystery whales have been surprising whale watchers from Canada to Olympia. When somebody gets the thrill of seeing an orca in Northwest waters, that whale is almost always well known. Scientists ...

Researchers suggest that predation by a subspecies called Bigg's orcas might explain why members of another one, called resident orcas, stay in such large family groups ...

Ask anyone who’s had encounters with killer whales, and they will tell you just how smart they are. Orcas are incredibly intelligent creatures, capable of complex hunting strategies. They also engage ...

Plans to build a whale sanctuary at the Wine Harbour wharf and bay have drawn mixed reactions, with one long-time lobster fisher saying the project will not ...

I am a Southern Resident orca, and I think it is time to explain some things.

Historically, killer whale diet research relied on surface sampling of prey fragments, usually scales, helping researchers to determine primarily salmon species. Newer techniques that analyze DNA in ...

, March 10 -- Scientists have found possible evidence suggesting that some killer whales may hunt and eat their own species in waters near Russia.

In the North Pacific, orca fins with signs of cannibalism are washing up on a Russian beach. The findings suggest that killer whales occasionally participate in cannibalism, which might explain why ...

Common names for animals are often easier to remember than their Latin names, but they can often lead to confusion. Here are ...