A humpback whale briefly engulfed a kayaker off the coast of Chile in an incident caught on camera. Experts say it couldn't have swallowed him even if it wanted to.

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

Now imagine that each weighs more than the bus itself. That’s Rice’s whale, the only resident baleen whale in the Gulf of Mexico—and one of the most endangered whales in the world.

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

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 ...