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When researcher Jared Towers set up his cameras underwater to observe a pair of killer whales, he saw something strange.

The new research, led by the Center for Whale Research in collaboration with the University of Exeter, has been published in ...

O rcas are easily recognized by their jet-black bodies punctuated with striking white markings, most notably the “eye patch” ...

Efforts to save the Northwest’s endangered orcas are not working on either side of the U.S.-Canada border, according to an ...

Researchers documented 34 instances of purported prey-sharing behavior, which suggests orcas may be altruistic and capable of ...

Once thriving, there are now believed to be just 73 Southern Resident killer whales left in Washington state's Puget Sound.

Orcas often share food with each other—it’s a prosocial activity and a way that they build relationships with each other,” ...

We're replacing BBC Sounds outside the UK and bringing you BBC.com, a seamless way to read, watch, and listen - all in one ...

The population of Bigg’s killer whales — which is believed to be in the hundreds — has grown since the government stopped ...

Wild orcas on more than 30 occasions in four oceans have attempted to share their prey with people, potentially to develop relationships with humans, researchers have found. In each of the instances ...