Southern Resident killer whales are a small and well-studied group of orcas that have long been seen as an isolated group without much outside connection. New research challenges that view, suggesting ...

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

Where there are Chinook salmon, the orcas will likely follow — including the mouth of the Columbia River. Despite what can feel like a desperate and futile effort to save the region’s venerated ...

SEATTLE — The endangered killer whales of the Pacific Northwest live very different lives from orcas in captivity. They swim up to 100 miles (161 kilometers) a day in pursuit of salmon, instead of ...

While well documented in the Northern Hemisphere and Antarctica, much less is known about killer whales (Orcinus orca) in Australia. However, orcas are actually sighted year-round in all coastal ...

Orcas, also known as killer whales, are one of the ocean’s most powerful predators. Despite their nickname, attacks on humans are extremely rare. While orcas are capable of harming people, most ...

France must decide what to do with two orcas marooned at a deserted marine park: move them to another park, or release them ...

New research shows southern resident killer whales grooming each other using kelp they’ve modified, and researchers think it’s the first time researchers have documented marine mammals making tools.