Ancient viruses are being unearthed in ice -- and they could help solve a big mystery about what makes us sick

AP/Natacha Pisarenko In a plot that sounds like something out of a low-budget horror film, scientists have recently uncovered ancient, enormous viruses in icethat some say could wake up as the Earth's climate warms. Before they begin to threaten our health, however, some of these newly-unearthed viruses may offer important clues into some of the most enduring biological mysteries — including where such viruses came from in the first place. This week scientists at the University of New South Wa...