Researchers documented 34 instances of purported prey-sharing behavior, which suggests orcas may be altruistic and capable of ...

Orcas often share food with each other—it’s a prosocial activity and a way that they build relationships with each other,” ...

The rare and awe-inspiring gestures were documented off the coasts of B.C., California, New Zealand and Norway. Researchers ...

Orcas, also known as killer whales, are among the most intelligent and social of marine mammals. They live in tight-knit pods ...

Wild orcas on more than 30 occasions in four oceans have attempted to share their prey with people, potentially to develop ...

If you combined with their recent fad for sinking yachts, killer whales are starting to look like the Robin Hoods of the sea.

Despite having a reputation for strategically hunting marine mammals and occasionally sinking yachts in the Mediterranean, it has now been revealed that orcas have a more romantic side. After drones ...

Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their prey with humans, according to research published in the Journal of ...

Orcas were spotted using kelp as a grooming tool on each other, the first known use of tools among cetaceans for something ...

Researchers using a new drone say they have observed killer whales finding and modifying stalks of kelp to preen each other.

In a new sign of toolmaking in marine mammals, orcas in the Pacific Northwest were recorded rubbing stalks of kelp against ...

Caption: Chimo the transient white whale was paired up with Haida, a southern resident orca, to perform at Sealand of the Pacific in Oak Bay, B.C. In the wild, transients and southern residents do not ...