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

Orcas, like humans, get baby bumps in the early months of pregnancy and grow larger as the pregnancy advances. Researchers ...

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

The new species, named Salmoneus manningi, is “overall whitish” with “ivory white” asymmetrical claws, researchers described.

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

Today, there are only 73 southern resident orcas left, fewer than when they were listed for protection, and their risk of ...

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 ...

Have you ever wondered whether your dog or cat experiences feelings of joy and sadness? How about whether or not wild animals love and grieve? Barbara J. King, an emerita professor of anthropology at ...

Mother orca Tahlequah is continuing to carry her burden ... The birth was confirmed on Christmas Eve, and the baby was confirmed dead on New Year's Eve. She has been carrying the calf at least ...

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 ...