In March 2019, scientists studying whales near Southwestern Australia stumbled upon a supersize spectacle that few had seen before — a pod of orcas viciously attacking a blue whale. Over a dozen orcas surrounded the mighty animal. They had already bitten off its dorsal fin, and the animal was unable to evade the fast and agile predators.
The water ran red with the blood of the massive creature, and chunks of its flesh were floating all around. The scientists observed one orca force its way into the blue whale’s mouth and feast on its tongue. It took an hour for the orcas to kill the blue whale, and once they did, about 50 other orcas showed up to devour the carcass.
A pod of orcas taking down a blue whale is “the biggest predation event on Earth, maybe the biggest one since dinosaurs were here,” said Robert Pitman, a marine ecologist at Oregon State University and an author of the paper.

Orcas Are Able to Kill and Eat Blue Whales, Scientists Confirm
Recordings in seas off Australia proved that the predatory prowess of killer whales is inescapable, even for the adults of the largest species that ever lived.
