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

Rochelle BakerLocal Journalism Initiative ReporterCanada's National ObserverFor a second time, the world watched as Tahlequah ...

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 ...

Two studies reveal that the communication systems of most cetaceans examined adhere to the principles of efficiency and ...

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

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 ...

Some animals rely on brute strength to hunt, while others use intelligence, deception, and teamwork to outwit their prey.

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

Make Valentine’s Day memorable with these 5 unique date ideas inspired by the ocean—perfect for celebrating love in all its beautiful forms.

Scientists have discovered a pristine marine sanctuary in the Marshall Islands’ Ratak Chain. Grey reef sharks, manta rays, ...

Deep in the Pacific, humans have tracked a mysterious whale’s call for decades—but no other whale seems to respond. And now, we might be running out of time to find the source.

The documentary tells the story of the last southern resident killer whale held in captivity, and the efforts of two Lummi women to bring the orca home to a net pen sanctuary.