Beneath its ice, the Arctic Ocean is teeming with life, says a team of international scientists that just completed a 30-day expedition to the northern ocean. In the months and years ahead, the 45 scientists from the U.S., Canada, China and Russia that took part in the Hidden Ocean expedition will pore over thousands of photographs, ice samples and ocean specimens collected in the Canada Basin. "We were surprised. There was an awful lot more life up here than what people expected and believe there is," said Russ Hopcroft, a Canadian researcher and assistant professor at the Institute of Marine Science at the University of Alaska in Fairbanks.