No stranger to extreme challenges, Britain's Ross Edgley is battling towering waves and swimming past orcas as he takes on ...

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

Orcas are curious and tactile, with brains that are large compared with their body size, Giles explained, adding that some parts of the killer whale brain are more developed than what’s seen in humans ...

She was born into a life of incredible privilege but gave it all up for a sordid life on the run with a convicted rapist. Now ...

Orcas have long been revered for their intelligence, adaptability, and group-hunting strategies. But one scientific review ...

In a baffling show of generosity, killer whales across the globe are giving fish to humans—and scientists are racing to ...

Researchers have identified a fascinating behavior in killer whales, aka orcas: they sometimes offer to share their prey with ...

Scientists documented 34 remarkable cases of wild killer whales trying to give food to humans across four oceans over 20 years.

Killer whales are known for exceptional intelligence, displaying complex social structures and sophisticated communication. New research provides fresh evidence for this, documenting how these ...

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 ...