According to the aquarium, Old Thom is the only orca regularly seen in North Atlantic waters. Unlike most killer whales that swim in pods, Old Thom is known to swim alone or with dolphins in the Gulf ...

Captured off the coast of San Diego, the astonishing video pictured above captures the moment that a dolphin is punched on the chin by a killer whale. The dolphin rises above the surface, but the orca ...

Add Yahoo as a preferred source to see more of our stories on Google. An endangered Southern Resident Killer Whale, an icon of the Pacific Northwest, breaches near Henry Island in Washington State.© ...

When researchers from the University of British Columbia set out to film the solitary hunting habits of Northern resident killer whales, they expected to see quiet and solitary predators at work.

MONTEREY, Calif. -- A rare encounter left a whale-watcher in Monterey County, California in shock when a killer whale attacked a pod of dolphins. Dolphins swam for their lives after encountering eight ...

Whale watching trips off the northern Channel Islands spotted large groups of orcas. The company started running trips out of ...

Only two places in the world allow tourists to enter the water with the ocean’s apex predator. But the safety of both species is a growing concern.