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.

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

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 ...

Over time, that name morphed into "killer whales." Scientists don't know whether orcas kill for fun. The marine mammals do some things, like killing and tossing dead porpoises in the air ...

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 ...

Footage captured in May 2022 shows an aerial view of killer whales hunting and killing great white sharks at Mossel Bay, ...

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

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

That legal precedent also applies to the killer whales, which are similarly protected as an endangered species ... risks of ...