PORTLAND, Ore. (KOIN) – One fashion trend from the ’80s may be making a comeback – at least with killer whales. An orca has been spotted wearing a salmon hat for the first time since 1987. On October ...

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 ...

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

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 ...

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 ...