For the first time, orcas have been seen making and using tools out of seaweed. The reason? Most likely as a form of social ...

Southern resident killer whales in the Salish Sea off the U.S. state of Washington have been observed making tools from bull kelp stalks, biting off pieces and using them to massage each other in ...

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

To make the tool, the orcas use their teeth to grab a stalk of kelp by its "stipe"—the long, narrow part near the seaweed's holdfast, where it tethers to the rock. They use their teeth, motion ...

Orcas use kelp tools to groom and bond off B.C.'s coast, study suggests In pricey spas, kelp facials and body wraps can set the esthetically inclined human back hundreds of dollars.

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.

Canada Orcas use kelp tools to groom and bond off B.C.‘s coast, study suggests In pricey spas, kelp facials and body wraps can set the esthetically inclined human back hundreds of dollars.

It was a sizable gray whale, and I assured the worrier that the big cetacean could rip up the kelp bed if it needed to. Tiffany let out a laugh and loudly declared, “It’s scratching an itch ...

We have two whales with kelp between them simultaneously rubbing it against each other. And that’s really unique,” he said He said primates rarely use grooming tools unless given them by humans.