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

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

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.

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 ...

One of the most unique about whales is that they're the largest animals to ever exist on Earth — even bigger than the largest ...

The ventral pleats allow its throat to expand like bellows. Then, it uses its baleen to strain much of the water out of its mouth and swallows the krill. Blue whales do “sing,” but their vocalizations ...

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 ...

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

Only male whales sing as part of an elaborate courtship display to prove their worth to potential mates. Other ways to woo a whale can include physical competition, where males charge at speed all in ...

Whales sing by pushing the tissue against the fat ... “For whale populations that are really dispersed, like the Antarctic blue whales, they might not be able to find mates in a noisy ocean ...