Scientists counting marine mammals off Alaska's Arctic Ocean coast spotted two large groups of killer whales last month, but orca experts are not ready to say the species has increased its numbers in ...

Residents and visitors in British Columbia have been experiencing a rare sight, thanks to a pod of killer whales engaging in ...

ALERT BAY, British Columbia — You’re floating in the ocean when a massive killer whale approaches and gently releases a piece of prey right in front of you, then waits to see what you’ll do. It might ...

Recently, people have spotted killer whales engaging in some unique behavior. They are rubbing their bellies along the rocks ...

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

In the serene surface of the Gulf of California, a harrowing spectacle is developing. Near the surface ridden with confusion and gushing blood, a juvenile great white shark struggles. A pod of killer ...

Killer whales have been seen detaching lengths of seaweed and using them to massage each other—the first evidence of tool-making by marine mammals. The whales bite off the end of a kelp stalk, ...

Two killer whales scrubbing kelp between their backs, also known as “allokelping.” Credit: Center for Whale Research, NMFS NOAA Permit 27038 Lots of animals use tools to get their food, but ...

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

Dec. 19 (UPI) --Kshamenk, the last killer whale held in captivity in Latin America, died of cardiorespiratory arrest in Argentina at age 35, Mundo Marino said. The mammal spent 33 years in a marine ...

Primates, birds, and elephants are all known to make tools, but examples of tool use among marine animals are much more limited. Reporting in the Cell Press journal Current Biology on June 23, a team ...