Ecotypes of killer whales around Hokkaido. The red regions in the top left map show the sea areas where we can frequently see killer whales. Kyoto, Japan -- The species Orcinus orca, generally known ...

An international team of marine biologists have published research in Molecular Ecology that shows the benefits of gene flow between geographically distant and genetically different killer whale ...

A group of killer whales that has been attacking ships off the coast of Spain for several years, according to scientists, has ...

New research shows southern resident killer whales grooming each other using kelp they’ve modified, and researchers think it’s the first time researchers have documented marine mammals making tools.

Researchers have observed dolphins and killer whales hunting together for the first time as part of a new study released on Thursday, Dec. 11. The top predators joined forces to feast on salmon off ...

A rare group of endangered southern resident killer whales was spotted off Oregon’s central coast Monday, March 24, about three miles offshore near Cape Foulweather, just north of Depoe Bay. Observers ...

A federal judge has awarded an environmental group more than $1.6 million for prevailing in a lawsuit against Endangered Species Act regulations for killer whales. In 2020, the Wild Fish Conservancy ...

Orcas, or killer whales, are deadly and beautiful apex predators.

A baby Bigg’s (Transient) orca photographed travelling with T068C pod near Tonquin Beach off Tofino on Jan. 5 appears to be in poor health and will likely die, according to whale researcher and ...