Killer whales, also known as orcas, are incredibly intelligent apex predators. As such, researchers have been observing the ...

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 ...

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

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

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 ...

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

The more we learn about orcas, the more remarkable they are. These giant dolphins are the ocean's true apex predator, preying ...

Orcas in the North Pacific have been seen "massaging" each other - rubbing pieces of kelp between their bodies. Using drones, ...

In the Salish Sea off British Columbia, southern resident killer whales are also using kelp for what scientists suspect are ...

Killer whales turn kelp stalks into tools that they use to groom each other while cleaning their own skin, too, observations ...