A video of a killer whale off the coast of Massachusetts went viral. An expert said it was Old Thom, a whale who has an ...

According to the aquarium, Old Thom is the only orca regularly seen in North Atlantic waters. Unlike most killer whales that ...

Tilikum was SeaWorld’s most famous orca — a massive captive whale who had already been linked to deadly incidents before the world truly knew his name. In 2010, after what seemed like a normal show in ...

Conrad said transient killer whales are more likely to show up in larger bays and rivers, like Tillamook Bay, Yaquina Bay and ...

The Salish Sea seemed full of whales last year — just not the ones most at risk. Why it matters: A report released this month ...

According to the Washington Department of Fish and Wildlife, endangered species under federal protection in Washington state ...

Other orcas visit from places such as Iceland, but are more commonly seen in the Shetlands and the west coast of Scotland.

Three orcas that had not previously been recorded in the Seattle area have delighted whale watchers with several visits.

Hunting killer whales always eat the animals they kill, typically leaving behind only a few low-energy parts, such as fins. "Also, if it was just aggression, they wouldn't bother to tear off the fin," ...

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 ...

It's nearly impossible to fathom exactly what new and interesting creatures live out there—unless you come face-to-face with ...