The name "killer whale" is a misnomer. Orcas, aka killer whales, are actually dolphins. Orcas are the largest member of the Delphinidae family, which includes dolphins and other species. Like dolphins ...

Dolphins have been attacking swimmers at a beach in Japan and some think it may be the animals getting revenge. Four swimmers have so far been injured by dolphins off Suishohama beach near Mihama, ...

The owner of a San Diego-based whale-watching business on Friday shared a video clip showing an orca lunging after an elusive dolphin during an “amazing game of cat and mouse.” But Domenic Biagini ...

In the Humboldt Current, off the coast of Chile, an enigmatic pod of orcas has been seen tearing apart unexpected prey. What's even more surprising is the way the orcas then divvied up and shared ...

A recent study published in Proceedings of the Royal Society B confirms that dolphins and orcas have reached a point in their evolutionary path where returning to land is no longer biologically ...

The owner of a San Diego whale-watching company this week shared extraordinary footage showing Eastern Tropical Pacific killer whales preying on dolphins during recent visits from Mexico. The footage ...

Some lucky whale watchers were treated to a once-in-a-lifetime spectacle — courtesy of Mother Nature — off the Palos Verdes coast on Tuesday, Jan. 2. A pod of Eastern Tropical Pacific orca whales, ...

The concept of socialist orcas from South America might sound bizarre, but these killer whales that redistribute their food among the pod are very real. While their black and white coloring is ...

A pod of orcas that typically spend time off Mexico traveled up to Southern California Monday, Dec. 11, creating a buzz on the water. Charter boats rushed to get a close-up look at the mysterious sea ...

Shocking footage reveals orcas and dolphins 'swimming aimlessly' in a deserted marine park in France. Two orcas and 12 dolphins are trapped in Marineland Antibes, a park near Cannes that closed in ...

The owner of a San Diego-based whale-watching business on Friday shared a video clip showing an orca lunging after an elusive dolphin during an “amazing game of cat and mouse.” But Domenic Biagini ...