Orcas, or killer whales, are deadly and beautiful apex predators.

With the Salish Sea visible to the west, more than 200 people packed the Edmonds Waterfront Center auditorium March 12 to ...

An international team of marine biologists have published research in Molecular Ecology that shows the benefits of gene flow ...

Hunting killer whales always eat the animals they kill, typically leaving behind only a few low-energy parts, such as fins. "Also, if it was just aggression, they wouldn't bother to tear off the fin," ...

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New research shows southern resident killer whales grooming each other using kelp they’ve modified, and researchers think it’s the first time researchers have documented marine mammals making tools.

Ecotypes of killer whales around Hokkaido. The red regions in the top left map show the sea areas where we can frequently see killer whales. Kyoto, Japan -- The species Orcinus orca, generally known ...

Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their prey with humans, according to research published in the Journal of ...