Orcas (sometimes called killer whales) can often be found swimming in the Southern Ocean. They hunt prey such as seals who also live on the continent. A research base in Antarctica. In 1911 ...

Great rivers of whale pee make a remarkable contribution to Earth's cycling of nutrients, a new study reveals.

Expedition Killer Whale gave me a unique insight into Antarctica for the first time, through the eyes of killer whales. Killer whales - or orca - number hundreds of thousands worldwide.

Killer whales can be found in all oceans, according to the National Oceanic and Atmospheric Administration, although most are located in Antarctica, Norway, and Alaska due to the colder waters.