In a baffling show of generosity, killer whales across the globe are giving fish to humans—and scientists are racing to ...

Researchers have identified a fascinating behavior in killer whales, aka orcas: they sometimes offer to share their prey with ...

A rare encounter was caught on camera off the Big Island when two massive killer whales — also known as orcas — swam right up ...

O rcas are easily recognized by their jet-black bodies punctuated with striking white markings, most notably the “eye patch” ...

Scientists documented 34 remarkable cases of wild killer whales trying to give food to humans across four oceans over 20 ...

This week on Break It Down: feast your eyes on the stunning first images from the world’s largest digital camera, capturing millions of galaxies and thousands of new asteroids. Why killer whales are ...

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

Haight listed several popular viewpoints in Pierce County for seeing the whales: ...

To start a kelp-based grooming session, an orca places the bull kelp stipe on its face and nuzzles against another killer ...

While well-documented in the Northern Hemisphere and Antarctica, much less is known about killer whales (Orcinus orca) in ...

Are orcas coordinating attacks on boats? 06:06 Killer whales have been caught on video breaking off pieces of seaweed to rub and groom each other, scientists announced Monday, in what they said is ...