KILLER whales have broken into an all out cannibalistic civil war, scientists believe. Biologists have warned of an all-out ...

The orca is called the killer whale for a reason—and nothing demonstrates why quite like a recent scientific discovery about deadly encounters between orcas and young great white sharks. A pod of orca ...

Orcas are fierce, apex predators of the sea; hence their “killer whale” moniker. They’re also smart, which makes them even more of a threat. One of their preferred prey? Another supposed apex predator ...

Add Yahoo as a preferred source to see more of our stories on Google. Orcas in the Gulf of California off the coast of Mexico have been spotted hunting young great white sharks by flipping them over ...