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

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 ...

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

Avoiding predators is one of the most important jobs for many members of the animal world. Even ocean giants like baleen whales have something to fear from killer whales, their only known natural ...

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 ...

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 ...

The endangered southern resident killer whales that visit Puget Sound were listed for protection under the federal Endangered ...

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

I’m holding onto a metal crane, on the other end of which is a long-lens camera in a gyro-stabilised housing, which hovers inches above the icy water of the Southern Ocean. ...eye contact with ...

Whales are gathering in large numbers off New Jersey in a portion of the Atlantic Ocean called the New York Bight, according to several sources.

The pod of killer whales that showed up Thursday, Jan. 30, have only been documented less than 10 times since 1993.