Prior to this instance, the “tongue-nibbling” had only been observed a handful of times in captivity. First seen in captive ...

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

"... Its prevalence is extremely low — it may appear and then not be observed again for several years," the study’s co-author, Javier Almunia said ...

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

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

Wild orcas across four continents have repeatedly floated fish and other prey to astonished swimmers and boaters, hinting that the ocean’s top predator likes to make friends. Researchers cataloged 34 ...

A rarely seen pair of killer whales were recently spotted twice in one week off the coast of Scotland. The duo — known as John Coe and Aquarius — are the last surviving members of the Scottish ...

The orcas clearly liked this activity because different whales were recorded preparing the stems eight times and rolling the ...

Juvenile Iberian killer whales — a "unique subpopulation of killer whales that lives in the northeast Atlantic," — were first documented touching, pushing, and even turning vessels, including ...

PALS on a fishing trip were stunned when they spotted what appeared to be a pod of killer whales in the Channel. David Hilton ...

A killer whale has repeatedly rammed a yacht off the coast of Scotland, it has emerged, in an attack reminiscent of those seen 3,000 miles further south near Gibraltar. The orca is said to have ...

A family pod of transient killer whales is shown in Monterey Bay, California. Two other whales, named “John Coe” and “Aquarius,” who have become popular among watchers in Scotland, were ...