Sixty orcas were filmed killing a 59-foot pygmy blue whale in Bremer Canyon off the coast of Western Australia on April 7. The brutal footage shows the pod of killer whales living up to their name, ...

Orcas have long been revered for their intelligence, adaptability, and group-hunting strategies. But one scientific review spanning two decades has revealed a little-known, yet intriguing behavior.

Five families of orcas joined forces to hunt down and feed on a blue whale, the largest creature on the planet, in what was an extremely rare sighting off Australia. More than 60 orcas worked together ...

Orcas in the Gulf of California paralyze young great white sharks before ripping out their livers Orcas are adopting terrifying new behaviors. Are they getting smarter? Killer whales are teaming up ...

It was an overcast day off the coast of Morro Bay when one group of whale watchers spotted a surprising sight: a group of about a half-dozen killer whales having a grisly feast. The orcas were likely ...