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 ...

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

New research from the University of Washington finds some baleen whale species call at such deep frequencies that they’re completely undetectable by killer whales, which cannot hear sounds below 100 ...

The underwater attack—which was organized ... the attack was already underway when they arrived as the killer whales were observed coordinating their attack on the sperm whale in waves," the ...

The video of the whale had people rethinking how they see the animal with some vowing to never go in the ocean ...

In one recent loss, the female orca known as Tahlequah carried the body of her dead calf through the ... and FortisBC’s ...

The underwater attack — which was organized ... the attack was already underway when they arrived as the killer whales were observed coordinating their attack on the sperm whale in waves ...

An orca calf less than 24 hours old has been spotted in a rare sighting of a newborn killer whale in Western Australia. The animals are regularly seen off Bremer Bay in summer, but calves are ...

The federal measures put in place to protect the endangered orcas since the last ministerial assessment in 2018 have proven ...