In a new sign of toolmaking in marine mammals, orcas in the Pacific Northwest were recorded rubbing stalks of kelp against ...

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

Dubbed "allokelping," it might be a unique cultural phenomenon that's as endangered as the orca population itself ...

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

Drone footage has captured killer whales breaking off stalks of kelp and rubbing the pieces on other orcas, a rare case of ...

In the first known toolmaking by a marine mammal, southern residents have been documented detaching lengths of seaweed and ...

Drone footage reveals killer whales using kelp to bond, groom, and possibly heal - offering a rare glimpse into their social ...

Thanks to new drone footage, killer whales have joined an exclusive club: the short list of animals that make and use tools.

The killer whales are using a kind of marine loofah to exfoliate. Rubbing the kelp between their bodies is a form of mutual ...

For the first time, orcas have been seen making and using tools out of seaweed. The reason? Most likely as a form of social ...

Seaweed and kelp are critical for life on Earth Forests and beds filter excess nutrients and sequester carbon through ...

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