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 ...

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 ...

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

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," the ...

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

In one recent loss, the female orca known as Tahlequah carried ... expansion plans — projects she said increase underwater noise, risks of whale-ship collisions and the possibility industry ...