Researchers say an endangered killer whale that drew international attention as she carried her dead calf on her head for more than two weeks is finally back to feeding and frolicking with her pod.

Dead salmon hats for fall? Groundbreaking. In the summer of 1987, orcas from the Pacific Northwest’s “southern resident” population started doing something that fascinated and perplexed human ...

Tourists were treated to a stunning performance by an orca while on a boat trip around the Galapagos Islands in Ecuador. But what made this encounter so incredible was that the orca tossed a turtle ...

It was an overcast day off the coast of Morro Bay when one group of whale watchers spotted a surprising sight: a group of about a half-dozen killer whales having a grisly feast. The orcas were likely ...