Scientists have spotted a subset of killer whales using seaweed to scratch each other’s backs, marking the first known identification of “tool” usage by marine mammals.

Behavioral ecologist Michael Weiss was browsing through new drone footage of the orca pods he studies in the Salish Sea when he spotted one of the killer whales carrying something green in its mouth ...

A new study reveals killer whales fashion kelp into tools and use them to groom each other, a possible first for marine ...

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

Animals using tools is always a pretty cool facet of their behavior, from monkeys cracking nuts to elephants sabotaging their ...

Orcas have been spotted giving each other rubdowns with kelp tools, rubbing pieces of the seaweed between their bodies.

Other animals including some early humans, non-human primates, sea otters, elephants, and bird species are known to use ...

Killer whales have been seen detaching lengths of seaweed and using them to massage each other—the first evidence of ...