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.

In Antarctica, a scientist waits patiently for ... pollution and underwater noise. Killer whales trapped in drift ice off northern Japan escape Today there are about 84,000 adult specimens in ...

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

Antarctica is the most hostile of earth ... Other residents are facing an uncertain future too, including wave-washing killer whales. We discover that their favourite prey, Weddell seals ...