Orcas, or killer whales, are deadly and beautiful apex predators.

WARNING, GRAPHIC CONTENT: The footage shows several orcas taking turns with the carcass, highlighting their cooperative ...

THIS is the shocking moment a pack of killer whales tear a shark to pieces and feast on its remains. Terrifying footage shows ...

Blue whale calves enter the world already the size of a bus, yet they still face danger. A hungry killer whale sees a slow, ...

Captured off the coast of San Diego, the astonishing video pictured above captures the moment that a dolphin is punched on the chin by a killer whale. The dolphin rises above the surface, but the orca ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers have observed dolphins and killer whales hunting together for the first time as part of a new study released on ...

Hunting killer whales always eat the animals they kill, typically leaving behind only a few low-energy parts, such as fins. "Also, if it was just aggression, they wouldn't bother to tear off the fin," ...

(CNN) — A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a traditional enemy that’s better known for taking out great white sharks ...

"They're more elusive — and critically endangered." Researchers stunned after cameras record rare predators in unexpected ...