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

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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.

On March 6, three orcas showed up in Canada’s Vancouver Harbour, later heading south to Seattle, Tacoma and Olympia, that ...

A profile of these animals notes that transient killer whales (Orcinus orca), also known as Bigg’s killer whales, are unlike the Southern fish‑eating populations, and that these Transient groups and ...

Learn why blue whale calves are prime orca targets and how their massive mothers use slipstreams, allies, and shockwaves to ...

Step aside, primates and crows. Thanks to new drone footage, killer whales have joined an exclusive club: the short list of animals that make and use tools. Scientists have discovered that southern ...

Add Yahoo as a preferred source to see more of our stories on Google. Orcas, or killer whales, are deadly and beautiful apex predators. New 'Forbidden Fruits' trailer teases a witchy mean girls ...