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

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

The whales use quick body movements to tear pieces of bull kelp for use as tools, perhaps the first known toolmaking by a marine mammal.

PARIS - Killer whales have been caught on video breaking off pieces of seaweed to rub and groom each other, scientists announced on June 23, ... The whales mainly eat Chinook salmon, ...

Scientists are discovering that killer whales, among the most social and intelligent of marine animals, have unique family structures and behaviors, passed from one generation to the next.

On a cold January day I was surrounded by hundreds of black-and-white killer whales—Orcinus orca, not a whale but rather the largest dolphin—streaking like wolves through the waters of Norway ...

Killer whales have been seen detaching lengths of seaweed and using them to massage each other—the first evidence of tool-making by marine mammals. The whales bite off the end of a kelp stalk ...

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

Scientists have spotted a subset of killer whales using seaweed to scratch each other’s backs, marking the first known ...