New research in the Strait of Gibraltar captured dozens of vocalizations from an endangered subpopulation of killer whales ...

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

THIS is the dramatic moment a diver witnessed a family of orcas feasting on a shark as its rag doll-like body hangs limp ...

For years, orcas off the coasts of Spain and Portugal have been ramming boats, tearing off rudders, and even sinking vessels.

A Southern Resident killer whale surfacing in Puget Sound with a dead salmon balanced on its head has drawn international ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers discovered that Northern resident killer whales hunt by going silent and eavesdropping on dolphin echolocation to ...

Free Willy actor Jason James Richter urges France to relocate captive killer whales Wikie and Keijo from Marineland ...

Wild orcas are not known to attack humans, but that’s partly because most humans are sensible enough not to jump into the water with the apex predators, and without regard for their own safety. The ...

A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a traditional enemy that’s better known for taking out great white sharks than ...

TACOMA, Wash — Two Gig Harbor sisters are wading into the frigid waters of Puget Sound every single day for a year, combining cold-water swimming with conservation advocacy to raise awareness about ...