Killer whales, also known as orcas, are incredibly intelligent apex predators. As such, researchers have been observing the ...

Marine biologist Carrie Newell photographed four blue whales — the largest animals on Earth — 3 miles off Depoe Bay.

To start a kelp-based grooming session, an orca places the bull kelp stipe on its face and nuzzles against another killer ...

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

Serrations at the edges of a fossilized flipper of the ancient marine reptile Temnodontosaurussuggests it may have been able to swim silently.

Whales observed in Salish Sea off western North America Behaviour is a rare instance of tool use by marine mammals It may promote skin health and strengthen ...

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.

An endangered humpback whale was recently spotted showing severe injuries from an apparent collision with a boat near Glacier ...

The nearly 1,065-pound whale is currently recovering in a medical habitat at the aquarium, but an expert says she's not yet ...

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

Killer whales off the west coast of North America have been spotted making and using tools to groom each other, the first time such behaviour has been recorded in marine mammals. Scientists from the ...