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

Pack-ice killer whales are highly social creatures, communicating through various vocalizations like pulsed calls and whistles. For the first time, researchers have recorded these vocalizations and ...

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

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

How big they are: Up to 32 feet (9.8 meters) long How long they live: Up to 100 years, but usually around 25 to 50 years What they eat: Fish, seals, seabirds, squid, sharks, and even whales Orcas ...

Beach rubbing, when animals swim close to shore to rub their bellies on smooth pebbles, is thought to help scrape off dead ...

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 ...