this is the first widely observed occurrence of an orca hunting and killing a great white shark by itself. This occurrence also challenges existing theories about the hunting strategies of killer ...

Researchers partially based these findings on the examinations of great white carcasses — discovered with orca bite marks and missing livers — that washed up on South Africa's beaches.

In an ocean full of apex predators, orcas pretty much have the head of the table locked down and in the short clip you see here, an orca makes that very, very clear to a great white shark.

The calf is the descendant of a killer whale captured by SeaWorld and released after a lawsuit. Photo: Pacific Whale Watch Association ...

A solitary killer whale, or orca, has been filmed hunting and killing a great white shark in an "astonishing" attack. Scientists said it was "unprecedented" and showed the exceptional predatory ...