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.

Scientists confirm that orcas and dolphins have lost the ability to return to dry land due to irreversible evolutionary ...

Orcas, like humans, get baby bumps in the early months of pregnancy and grow larger as the pregnancy advances. Researchers say they can now spot those underwater baby bumps from the air and keep ...

According to their results recently published in the journal Ecology and Evolution, the culprit is clear: a killer whale ...

New research finds male baleen whales looking for love sing a different tune when attracting a mate, and it all depends on if ...

Orcas, also called killer whales, are apex predators of the ocean. Their intelligence, hunting skills, and sheer power make ...

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 ...

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

and combined these with knowledge of how sounds move through the ocean to predict which whale populations can be easily heard by killer whales. It turns out the calls of flight species generally ...

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 ...