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

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 ...

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 ...

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

At the Natural History Museum, the cetacean collection contains the remains of more than 6,000 specimens of whales, dolphins, ...

Phrazle has two answers each day, one in the morning and one in the afternoon. The solutions below feature both, with the first one being morning and the second being the afternoon. You have six ...