Researchers suggest that predation by a subspecies called Bigg's orcas might explain why members of another one, called ...

Two groups of killer whales are engaging in a terrifying, bloody cannibalistic war beneath the ocean’s surface, where gangs ...

Scientists found evidence that killer whales may hunt and eat other killer whales, revealing new insights into how ...

Orcas don’t have any natural predators, so how did this happen? The tooth marks, it turned out, were distinctive – they were ...

Ask anyone who’s had encounters with killer whales, and they will tell you just how smart they are. Orcas are incredibly ...

Two severed fins bearing the tooth marks of other killer whales have raised a troubling question: are some orcas hunting ...

A study in 2018 revealed that some orcas are able to imitate human speech, mirroring words such as 'Amy', 'Hello' and 'Bye ...

Learn about the fatal encounters between two groups of killer whales, bringing the idea of whale cannibalism into question.

New Canadian-led research into northern resident killer whales suggests even when food is plentiful, orca moms struggle to ...

A trio of mysterious killer whales spotted in Vancouver Harbour last week has sparked excitement among marine researchers ...

In 2021 and 2023, hundreds of dolphins were stranded in shallow waters in San Antonio Bay in northern Patagonia. Some died, ...