Over time, that name morphed into "killer whales." Scientists don't know whether orcas kill for fun. The marine mammals do some things, like killing and tossing dead porpoises in the air ...

Orcas use advanced hunting tactics, working together like a wolf pack. They create waves to wash seals off ice, trap fish in bubbles, and even beach themselves to grab prey. Killer whales have ...

The grieving killer whale mom and her family — Tahlequah has two living sons — were spotted traveling together in Haro Strait off of Washington’s San Juan Island on the morning of Friday ...

This is the first time pack- ice killer whales have ever been, ever been recorded. - Lee continues to listen to the group for several hours as they look for a suitable meal.

Huber and Varni, project volunteers, said the orcas, or killer whales, were not present. But they said tooth-rake marks (common after orca predation) were evident on carcass. Schulman-Janiger ...

A video posted by Aquatic Mammals depicts the orcas eating the prey. “I was definitely surprised by how close the killer whales were to the anglers,” Ochoa told McClatchy News. But ...

Killer whale culture relies on this transfer of knowledge from generation to generation. It's how pack-ice killer whales have developed the most sophisticated hunting strategy on the planet.

And in came Reeves and other researchers, who utilized both wildlife forensics and citizen science data to provide the first confirmed evidence of killer whale predation on white sharks in Australia.

An orca calf less than 24 hours old has been spotted in a rare sighting of a newborn killer whale in Western Australia. The animals are regularly seen off Bremer Bay in summer, but calves are ...