A group of orcas in the North Pacific have been captured on video breaking off pieces of seaweed to groom each other ...

And killer whale youngsters are fond of playing kelp keep-away. But what the southern residents are doing with the kelp ...

Scientists have spotted a subset of killer whales using seaweed to scratch each other’s backs, marking the first known ...

The orca, also known as the killer whale, is one of the most fearsome predators of the ocean. With incredible speed, strength, and intelligence, orcas dominate the seas, preying on everything from ...

A discovery of unique killer whale behavior may be the first documented time a marine species has been seen using and ...

Researchers using a new drone say they have observed killer whales finding and modifying stalks of kelp to preen each other.

Behavioral ecologist Michael Weiss was browsing through new drone footage of the orca pods he studies in the Salish Sea when he spotted one of the killer whales carrying something green in its mouth ...

Photographer Brian Skerry swims with killer whales and discovers these apex predators have unique cultures that aren’t that different from our own. An Orca calf swims with two adults through ...

The best documentaries—from Paris is Burning to My Octopus Teacher—will raise your consciousness and expand your heart ...