The killer whales have displayed a range of entree options, including seaweed, stingrays, fish, and birds. Scientists believe this may be an example of interspecies reciprocity.

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 ...

The behavior could be the first-ever documented accounts of wild predators offering their food to people. In a nutshell Wild killer whales have been documented offering food to humans 34 times ...

Killer whales (orca) are massive aquatic mammals and members of the dolphin family. Even though these creatures may resemble other gentle giants in the sea, the killer whale lives up to its name.

Killer whales are one of the most intelligent animals; only humans have a larger brain relative to their body size, according to the study.

Killer whales sometimes offer to share their prey with people, a new study finds, hinting that some intelligent orcas may be attempting to develop relationships with humans.