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

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 ...

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 ...

Get Instant Summarized Text (Gist) Some baleen whale species sing at frequencies below 100 hertz, making their calls undetectable to killer whales, which cannot hear such low frequencies. These ...

That legal precedent also applies to the killer whales, which are similarly protected as an endangered species ... An emergency order could also prohibit the release of scrubber wastewater from ships ...

Environmental groups claimed the federal government's approval of the project wasn't in step with the Species at Risk Act because it will destroy a large swath of chinook salmon habitat, which ...