The dramatic incident transpired in Bremer Canyon, a marine park off the coast of Bremer Bay on Monday (Apr 7).

The episode, witnessed off the Australian coast, offers a rare glimpse into the brutal efficiency of the ocean’s top predator.

A massive gang of over 60 orcas was seen brutalizing an endangered pygmy blue whale off the coast of Western Australia by a ...

A pod of more than 60 orcas hunted and killed an estimated 18-metre-long pygmy blue whale off Western Australia's south coast ...