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

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

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

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

For the first time, researchers say they have captured footage of killer whales making tools out of seaweed to seemingly ...

Researchers have documented orcas seemingly gifting rays, seals and fish to scientists and divers, which could suggest they ...

Although orcas around the world are all categorized as a single species, they don't really behave as one. Distinct ...

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

PARIS - Killer whales have been caught on video breaking off pieces of seaweed to rub and groom each other, scientists announced on June 23, in what they said is the first evidence of marine ...

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

Southern resident killer whales are using kelp for what scientists suspect are both hygienic and social purposes.

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