New research reveals that orcas around the island of Hokkaido can be split into two distinct forms, offering conservationists ...

With roughly 45 teeth, each up to 10cm long and 4cm wide, orcas are perfectly engineered for ripping and tearing prey. These ...

Killer whales in aquariums regularly eat ice cubes, even though ice provides no calories or nutrients. It's a curious ...

Scientists know a surprising amount of information about Southern Resident Killer Whales, but once the whales leave their ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations ...

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.

A federal judge has awarded an environmental group more than $1.6 million for prevailing in a lawsuit against Endangered Species Act regulations for killer whales. In 2020, the Wild Fish Conservancy ...

A pod of four transient killer whales — including a calf — was spotted Sunday, May 10, 2025, swimming out of the Yaquina River toward the ocean. It’s the latest in a steady stream of orca sightings ...

A rare group of endangered southern resident killer whales was spotted off Oregon’s central coast Monday, March 24, about three miles offshore near Cape Foulweather, just north of Depoe Bay. Observers ...

Orcas, or killer whales, are deadly and beautiful apex predators. More than 90 charged over alleged Minnesota fraud Tatiana ...