Killer whales are the only natural predator of baleen whales—those that have "baleen" in their mouths to sieve their plankton diet from the water. More solitary than toothed whales, baleen whales face ...

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 ...

Fourteen species of baleen whales are instrumental in moving ... sea birds and even fellow whale species. A whale's diet ...

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

All whales are divided into two suborders: Odontoceti (those that have teeth) and Mysticeti (which have baleen plates instead). A whale's diet depends on its suborder. But not all whales within each ...

These whales' massive heads and jaws accommodate hundreds of baleen “teeth.” Rights and other baleen-feeding whales use a comblike strainer of baleen plates and bristles to ensnare tiny ...

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.

The Cetacea clade contains the largest animal to ever live—the blue whale—as well as other gigantic baleen whales and a diverse array of toothed whales ... all of which can tell researchers about the ...

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 ...