Killer whales, also known as orcas, are easily recognized by their stunning black and white appearance. These huge animals ...

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

Kayleigh Nicole Grant, a pro ocean diver, detailed a very close encounter with orca whales, deeming it "some of the best 30 ...

Fans of The Simpsons might remember the episode where disgruntled dolphins storm Springfield, march down Main Street and ...

When researcher Jared Towers set up his cameras underwater to observe a pair of killer whales, he saw something strange.

Orcas, better known as killer whales, sit atop the aquatic food chain as one of the most lethal apex predators on Earth.

Mystery over the behaviour. After four years and hundreds of incidents, researchers remain puzzled why orcas, also known as ...

One day in June 2022 Chérine Baumgartner, a researcher at the Icelandic Orca Project, was watching from a dinghy as a pod of killer whales fed on herring—when she noticed something very odd ...

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 ...

The discovery marks the first time cetaceans — marine mammals including whales, dolphins and porpoises — have been observed using an object as a tool to groom.

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 ...