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ThA Ne small number of surviving giraffes in western Africa is on the rise again, after 366 were counted in southwest Niger in 2012, up from 311 the previous year, official figures published Tuesday showed. The latest figure includes 177 males and 189…

The risk of dying from cancer in the United States has declined 20 percent over the past two decades, according to the American Cancer Society’s annual report out Tuesday. However, cancer, a complex disease that has largely eluded attempts at a cure…