Scientists have recorded the wild orcas engaging in "tongue-nibbling" — a social behavior similar to "making out" or French kissing — for the first time ever. Details on the documentation of this rare ...

Orcas have been known to display an array of anthropomorphic-seeming behaviors, from playing to mourning and even scuttling boats. Now, killer whales have been observed making out in the wild for the ...

Luna's antics included playing with a fire hose some bargemen had turned on in Nootka Sound. But over time, some people came to consider the animal a threat. Michael Parfit / Mountainside Films ...

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 ...

SEATTLE — The endangered killer whales of the Pacific Northwest live very different lives from orcas in captivity. They swim up to 100 miles (161 kilometers) a day in pursuit of salmon, instead of ...

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 ...