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 ...

Ask anyone who’s had encounters with killer whales, and they will tell you just how smart they are. Orcas are incredibly ...

ALERT BAY, British Columbia — You’re floating in the ocean when a massive killer whale approaches and gently releases a piece of prey right in front of you, then waits to see what you’ll do. It might ...

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 ...

Killer whales in aquariums regularly eat ice cubes, even though ice provides no calories or nutrients. It's a curious practice that has generated many questions because wild orcas never encounter ice ...

Two severed fins bearing the tooth marks of other killer whales have raised a troubling question: are some orcas hunting ...

Multiple killer whales were spotted circling and feasting on a blue shark in a dramatic open-ocean encounter. The footage ...

The award-winning documentary "Blackfish" clearly showed that captive killer whales (orcas) live horrific lives. They are routinely mistreated, forced to breed, and forced to perform stupid and ...

Add Yahoo as a preferred source to see more of our stories on Google. Two killer whales have been caught "kissing" on camera in a fiord in northern Norway. A group of ...

In the study, researchers from Canada, New Zealand and Mexico reported on 34 interactions spanning two decades in which orcas in the wild attempted to offer food to humans. The incidents took place in ...