Nine northern resident killer whales off Vancouver Island were filmed and acoustically tagged during a summer field season, and the recordings revealed something researchers had not formally ...

The oceans are home to some of the most effective predators ever to evolve, and their success comes from extraordinary ...

Killer whales and dolphins have been working together to hunt salmon in the northern Pacific Ocean, an unexpected finding that further reveals the complex social lives of marine mammals. Video cameras ...

Researchers have observed dolphins and killer whales hunting together for the first time as part of a new study released on Thursday, Dec. 11. The top predators joined forces to feast on salmon off ...

Off the coast of British Columbia, dolphins lead killer whales to salmon and earn their share of lunch, a new study reveals. A new study is the first to document cooperative hunting between orcas and ...

A project born in response to the 2010 Deepwater Horizon oil spill has produced a new method that lets scientists sort through and classify millions of dolphin sounds more rapidly than ever before.