Visitors to Antarctic waters got the show of a lifetime when several orcas went on the hunt for a penguin. The video has gone ...

The rapid expansion, over-exploitation and subsequent decline in whale stocks in the northern hemisphere in the 20th century led to the search for new whaling grounds in the south, at which point ...

ABC News' James Longman reports on scientists' conservation efforts. Antarctica -- Eight layers. Thermals, more thermals, inner layers, outer layers, and waterproofs. I do not do well in the cold. Now ...