The study states that killer whales are categorized into different species around the world because of the differences in the morphology of their skulls. The Bigg's killer whale's skull has a ...

Approving two proposed killer whale species could transform how they're conserved. It would also turn a new page in one of the strangest chapters in marine mammal history.

The creatures, which ranged in size from that of a fox to more than 50 feet long, divided their time between the coast and ...

Killer whales have often been considered one species, but a new report is outlining the distinct differences between Resident and Bigg's orcas.

New research from the University of Washington finds some baleen whale species call at such deep frequencies that they’re completely undetectable by killer whales, which cannot hear sounds ...

The 334 right whales that turned up in the analysis weren’t a surprise to Dr. van den Hurk, because they’re frequently mentioned in historical sources, and some survived until the early 20th ...

Most “flight” baleen whale species are acoustically cryptic to killer whales, unlike “fight” species. Marine Mammal Science, 2025; DOI: 10.1111/mms.13228 ...

Whales’ ancestors were land-dwellers about 50 million years ago before moving into water. Elemans said the animals adapted their voice boxes over tens of millions of years to make sounds underwater.