Fish-eating killer whales in southern Alaska have a diverse, seasonally changing diet featuring salmon and groundfish, ...

Marine biologists have documented a remarkable hunting strategy employed by killer whales in the southern Gulf of California, in which they harvest whale sharks' organs. Researchers in Mexico have ...

An orca pod in the Pacific Ocean off the coast of Mexico has devised a cunning strategy to hunt and kill whale sharks — the world’s largest fish that can grow up to 18 meters (60 feet) in length — new ...

This story was supported by grants from the Pulitzer Center and the Alaska Center for Excellence in Journalism, in partnership with The Seattle Times and Northern Journal. Second of three parts.

Orcas are born with powerful bodies and sharp teeth, but they are not born knowing how to hunt. Here’s why they depend so ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An orca pod in the ...