The two top predators seem to be working together to track, kill, and feast on salmon, researchers say.

New research suggests that a pod in the Gulf of California specializes in hunting sharks.

A pod of orcas in the Gulf of California have learned to effectively paralyze juvenile great white sharks.

An orca pod that made headlines last year for gutting a whale shark has struck again, this time perfecting a technique that involves paralyz...

SAN JUAN ISLAND, Wash. (AP) — As dawn broke over San Juan Island, a team of scientists stood on the deck of a barge and unspooled over a mil...

AFTER a spate of killer whale attacks off the coast of Portugal, a crack team of orca hunters are vowing to help end the violence out at sea...

Lisa Festervoll, among the crew, said the whole boat shook, 'hit hard and quickly'. Orcas rocked the helm and the rudder, and the boat began...

Five people were rescued from a tourist vessel that was attacked by orcas off the Portuguese coast on Saturday, authorities said. Another fo...

Iberian orcas have damaged several boats off the coast of Spain in recent weeks, leaving authorities scrambling to rescue stranded crews.

It takes practice to become the ocean's top predator.

Footage from the BBC's new nature series "Parenthood" shows orcas practicing an important blue whale-hunting technique on each other.

From Norway to the waters off New Zealand , wild orcas have been seen approaching humans who have been in boats and even standing on shore w...

Researchers have documented orcas dropping prey and other marine life in front of humans, as if offering us food. The orcas' motives are unc...

Shimron Hetmyer slammed unbeaten 97 for Seattle Orcas in their win over MI New York.

Swashbuckling West Indies batter Shimron Hetmyer has finished the match in style, as Seattle Orcas beat the MI New York by three wickets in...