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

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

Scientists recently discovered that orcas were using bits of kelp to clean each other, ... No matter how much we think we know about killer whales, they find new ways to surprise us.

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

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

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, ...

Southern resident orcas are using kelp tools to groom each other. The fact our local orcas do this grooming together, as a social behavior, is a big deal. Dr. Michael Weiss from the Center for Whale ...

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

In a new sign of toolmaking in marine mammals, orcas in the Pacific Northwest were recorded rubbing stalks of kelp against each other’s bodies, a study shows. By Jacey Fortin A hundred feet or ...

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 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 ...