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

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

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 ...

Discover 10 lesser-known facts about the blue whale, the largest animal on Earth. Learn about its diet, communication, ...

Read more about sperm whales: http://j.mp/sOSais Watch underwater footage of the mammal and hear its strange clicking sounds that are crucial to their survival What ...

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.

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

Whales use moans, snores, chirps and cries that are known as whale song. And now, a new study has found that whale song is ...

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