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Seastars and giant ribbon worms at McMurdo Sound, Antarctica, 32 metres depth (photo by R. B. Aronson)

A team of scientists in the United Kingdom and the United States has warned that the native fauna and unique ecology of the Southern Ocean, the vast body of water that surrounds the Antarctic continent, is under threat from human activity. Their study is published this week in the peer-reviewed journal Annals of the New York Academy of Sciences.…