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

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

Orcas were spotted using kelp as a grooming tool on each other, the first known use of tools among cetaceans for something ...

The footage conveyed a surprising trend: Dozens of orcas across all pods and age groups were using kelp to groom each other. While orcas have been known to drape kelp over their own bodies, ...

Researchers have observed a population of orcas that cut and position kelp tools between their bodies to scrub each other’s ...

A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of ...

FRIDAY HARBOR, Wash. — In a paper published this week, researchers shared evidence indicating Southern Resident orca whales may not only use tools, but they are fashioning them to complete a ...

Because the orcas are using the kelp collaboratively to massage each other, the behaviour has been named "allokelping" — allo being a term used in biology to signal "different" or "other".

Orcas in the North Pacific have been seen "massaging" each other - rubbing pieces of kelp between their bodies. Using drones, researchers filmed the animals selecting and biting off the kelp, then ...

Orcas make seaweed tools in order to scratch each other’s backs, a study has suggested. The animals, also known as killer whales, were observed detaching lengths of seaweed and massaging each ...

Orcas off the west coast of North America are grooming each other with kelp, in a rare sighting of marine mammals manufacturing and using tools. For several years, scientists have been keenly ...