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.

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

Blue whales are not just the largest animals alive today, but the largest animals to ever live on Earth. They can stretch ...

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

IT'S NO FLUKE... that whale mavens like to know which giants are passing along the coast on their ancient migratory journey.

striped dolphins and bearded whales while the beginning of spring is great for blue whales, sei whales and fin whales. Because so many cetaceans live and pass through these waters, the probability ...

Biologists found significant blunt-force trauma on the right side of the head of a 3-year-old whale and suspect it was hit by a vessel.

A fin popped out of the water followed by a head ... and they are some of the smallest whales in their family which includes blue whales, according to the Whale and Dolphin Conservation.

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 ...