It’s long been thought that the Southern Resident orcas that live in our region have no predators, but a new article in Live Science suggests that non-resident orcas, or Bigg’s orcas, might be eating ...

Fish-eating killer whales in southern Alaska have a diverse, seasonally changing diet featuring salmon and groundfish, according to a published study in the journal Ecosphere. The types of fish ...

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

Historically, killer whale diet research relied on surface sampling of prey fragments, usually scales, helping researchers to determine primarily salmon species. Newer techniques that analyze DNA in ...

In 2022, a Russian whale researcher made a remarkable discovery on Bering Island off Russia's Pacific coast: a severed killer whale fin marked with the teeth of another killer whale. In 2024, it ...

Orcas have long been revered for their intelligence, adaptability, and group-hunting strategies. But one scientific review spanning two decades has revealed a little-known, yet intriguing behavior.

Detached orca fins scored with distinctive tooth marks suggest that killer whale cannibalism is happening — and it might explain some complex orca societies.

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

Fish-eating killer whales in southern Alaska have a diverse, seasonally changing diet featuring salmon and groundfish, according to a recently published study in the journal Ecosphere. The types of ...