Killer whales have been caught on video breaking off pieces of seaweed to rub and groom each other, scientists announced ...

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

In the first known toolmaking by a marine mammal, southern residents have been documented detaching lengths of seaweed and ...

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

From the entanglement of Shelagh, a critically endangered North Atlantic right whale, to the awe-inspiring appearance of the ...

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

What happened to Kamea, the youngest orca at SeaWorld? The theme park says the killer whale has died after a lifetime of ...

A days-old endangered sea creature swam with its mom near Washington.

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

Researchers say higher quality drones helped them spot the whales regularly breaking off pieces of kelp to use as a tool, pressed between their bodies.

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