Ocean's Giant The blue whale is a true marvel of the marine world. Known as the largest animal to ever exist on Earth, these ...

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 ...

Recent findings used wildlife forensics and citizen science data to provide the first confirmed evidence of killer whale ...

The recent autopsy of a partially devoured great white shark confirms a brutal hunting trend—killer whales around the world ...

The 39-foot gray whale carcass was discovered floating off Marina del Rey on Saturday with most of its head missing.

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 ...

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 ...

After a 38-foot-long female gray whale washed ashore at Dockweiler Beach, scientists look for a cause of death: 'Each mortality has a story to tell.' ...

A recent theory proposes that whales weren’t just predators in the ocean environment: Nutrients that whales excreted may have ...

Natural killer (NK) cells are the predominant innate lymphocyte subsets that mediate anti-tumor and anti-viral responses, and therefore possess promising clinical utilization. NK cells do not express ...