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The incidence of emerging infectious disease is increasing, says a new report that also suggests ways to identify hot-spots. As part of the year-long ³ÉÈË¿ìÊÖ season on migration called World on the Move, a visit to the Gambia to meet birds on their way north – and hear a nightingale sing. New analysis from 51 populations around the world shows the range of human genetic diversity but also shows how we are related. Plus, a material that can stick almost anything together, and new data about the massive reserves of hydrocarbons, oils and gases on Titan.