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

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

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

, March 10 -- Scientists have found possible evidence suggesting that some killer whales may hunt and eat their own species in waters near Russia.

In 2022, a Russian whale researcher made a remarkable discovery on Bering Island off Russia's Pacific coast: a severed killer ...

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

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

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

Police responded to an unusual call when a pilot whale calf was found stranded on the beach in Florida. It happened on Monday ...

KILLER whales have broken into an all out cannibalistic civil war, scientists believe. Biologists have warned of an all-out ...

Fish-eating killer whales in southern Alaska have a diverse, seasonally changing diet featuring salmon and groundfish, ...

Researchers come 'eye-to-eye with a killer whale' during their Antarctic expedition.