When researchers from the University of British Columbia set out to film the solitary hunting habits of Northern resident killer whales, they expected to see quiet and solitary predators at work.

For eight hours, all they saw were dolphins and the spouts of humpback and gray whales. Then, the call went out.

Orca whales swam off the shore of a Seattle neighborhood. The orcas were Bigg's killer whales, a group that hunts sea mammals. They visit the Seattle area often.

Trowbridge and her Pacific Offshore Expeditions group spent the morning watching transient orcas feeding near the Channel ...

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Some orcas have developed a deadly taste for liver — specifically, the livers of great white sharks. According to NBC News, scientists in Mexico captured stunning new footage showing how killer whales ...

Here are some videos from Planet Wild where they are: Training guerrilla firefighters in Sicily Reviving a river after an eco disaster Off the coast of South Africa, a small group of orcas with an ...

A new study confirms that dolphins and orcas have reached a "point of no return" in their evolution, making a return to land ...

Sisters Emma and Annie Stafki dive daily into Puget Sound, blending humor and advocacy to spotlight the plight of endangered orcas. #k5evening ...

The orcas are reportedly named Funky Monkey and Pickle.