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

which can measure up to one-third of their total body length. These whales' massive heads and jaws accommodate hundreds of baleen “teeth.” Rights and other baleen-feeding whales use a comblike ...

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.

For instance, humpback whales are filter feeders, meaning they have hundreds of plates of baleen in their mouth instead of teeth. 'But baleen whales do grow teeth in the womb. Those teeth will be ...

The blue whale is the largest animal on the planet. It consumes enormous quantities of tiny, shrimp-like animals known as ...

The blue whale is the largest animal ever known to have lived on Earth. Blue whales are largest of all baleen whales and are found worldwide. They have a long slender body with a proportionally ...

They are baleen ... individual whales, which is an invaluable tool in tracking population size and health. Curlew and Koala were so named because there are markings on their body that look like ...

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 ...