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 ...

In the deep blue waters of the world’s oceans, some of the most intelligent and social creatures on Earth are engaging in behavior that challenges long-held assumptions about the divide between humans ...

Scientists believe that the kissing-like behavior likely reinforces "social bonds" between the animals Scientists have recorded the wild orcas engaging in "tongue-nibbling" — a social behavior similar ...

Orcas, also known as killer whales, are among the most well-studied marine mammals, captivating the public and scientists alike with their intelligence, strong social bonds and complex behaviors.

A killer whale in Monterey Bay, Calif. A killer whale was spotted balancing a salmon on its head earlier this fall near the coastline in Washington state, surprising scientists and intriguing orca ...

On Nov. 2, Orca Channel, a tour company that researches and captures media of Arctic wildlife, shared in a Facebook post that ...