Learn more about how baleen whales split into two groups — fight or flight — and how these groups determine how loud they sing.

Killer whales are the only natural predator of baleen whales—those that have "baleen" in their mouths to sieve their plankton ...

The clip shows a group of seven orcas — four adults and three calves — as they circle a seal on a tiny chunk of ice in ...

New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be the ...

Some baleen whales avoid killer whale attacks by singing songs at deep frequencies that their predators cannot hear.

Two studies reveal that the communication systems of most cetaceans examined adhere to the principles of efficiency and ...

Researchers collected DNA samples from the distinctive bite wounds on the shark’s body that washed ashore near Portland, ...

A welcome sight Thursday morning: Orcas in the Puget Sound. Experts say there’s one distinct thing people should know about ...

Orcas, like humans, get baby bumps in the early months of pregnancy and grow larger as the pregnancy advances. Researchers ...

Ackerman refers to local killer whale pods in two distinct groups: the ones he calls “meat eaters” and those that hunt ...

The super-low, super-loud songs of flight species like blue and fin whales are the perfect tool: they can attract a female from hundreds of kilometers away, while being acoustically invisible to ...

A 40-year-old woman was convicted of breaching the federal Fisheries Act after she was filmed paddleboarding near a pod of ...