ORCAs, the ultimate ocean predators, are capable of hunting the largest animals on Earth, including blue whales and elephant ...

A pod of more than 60 orcas, better known as killer whales, have been spotted attacking and killing an 18-metre-long pygmy blue whale off Western Australia's coast, in what is being described as ...

A massive killer whale swam deep into Yaquina Bay, hunting alone and stunning onlookers. Here's what we know about T049C — ...

Orcas attacked a sailboat off the coast of Spain on Sunday, in the latest account of killer whales targeting vessels in that region. Latest U.S.

Drone footage has captured killer whales breaking off stalks of kelp and rubbing the pieces on other orcas, a rare case of ...

Killer whales turn kelp stalks into tools that they use to groom each other while cleaning their own skin, too, observations ...

The whales use quick body movements to tear pieces of bull kelp for use as tools, perhaps the first known toolmaking by a marine mammal.