From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations ...

A new orca calf was spotted in Puget Sound on Tuesday afternoon, which is the first calf born into the K pod in over three years, according to the Orca Conservancy. Observers were viewing the Southern ...

The 50-year-old orca had been at SeaWorld Orlando for 40 years and was one of just five killer whales at the park.

Scientists say dolphins and orcas have teamed up to hunt salmon off British Columbia. It’s the first time such behavior has been documented between the two mammals.

Results from the Precision-T study showed Orca-T significantly improved survival free from chronic GvHD in patients with AML, ALL and MDS compared to a conventional allogeneic hematopoietic stem cell ...

The great white shark’s fearsome reputation has been shaped in part by films like Jaws and Deep Blue Sea, which portray it as ...

Stop me if you heard this one before: A new Navy vessel designed to do great and wonderful things is now an over-budget and behind-schedule boondoggle that is posing more headaches for the U.S.