Killer whales are the only natural predator of baleen whales—those that have "baleen" in their mouths to sieve their plankton ...
Infrasonic sounds are sound waves with frequencies lower than 20 Hz, which is below the range of human hearing.
Avoiding predators is one of the most important jobs for many members of the animal world. Even ocean giants like baleen whales have something to fear from killer whales, their only known natural ...
Some baleen whales avoid killer whale attacks by singing songs at deep frequencies that their predators cannot hear.
Learn more about how baleen whales split into two groups — fight or flight — and how these groups determine how loud they sing.
Deep in the Pacific, humans have tracked a mysterious whale’s call for decades—but no other whale seems to respond. And now, we might be running out of time to find the source.
A system called "SAvE Whales," developed in Greece and tested in the Greek seas, aims to minimize the threat of ship strikes ...
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 ...