Dubbed "allokelping," it might be a unique cultural phenomenon that's as endangered as the orca population itself ...

Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their ...

Killer whales are known for exceptional intelligence, displaying complex social structures and sophisticated communication.

A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of ...

Killer whales are actually the largest member of the dolphin family, ... In a similar vein, whale sharks are not whales at all, but sharks, though like some whales, they are filter feeders.

Killer whales have been caught using seaweed to rub and groom each other in what scientists say is the first evidence of marine mammals making their own tools.

Resident killer whales maintain tight-knit family pods while Bigg’s killer whales roam in smaller groups; Residents prey on salmon and other marine fish, while Bigg's preys on seals and whales; ...

New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be ...

While many families spent Thanksgiving watching football in their living rooms, some lucky few spent it watching killer whales punt a sea lion 20 feet into the air in Monterey Bay. About 120 ...

Killer whales, also called orcas, are social predators who hunt as a team in “pods.” Their diet depends on where they live, but they hunt for fish, squid, walruses, seals, sea lions, penguins ...

Killer whales are known for their intelligence and power, even an inclination to sink yachts. Now, research is showing how they take down prey that few other animals can. Orcas in Mexico's Gulf of ...