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How coral reefs – "the underwater rainforests of the world" – are being attacked by diseases like black band disease, as well as climate change and pollution. The problem of dangerous man-made debris in space. The noise of a bush fire gives a frog early warning. Looking back at the work of Professor Stephen Jay Gould, who died this week. Exhibition celebrating Gregor Mendel, the Augustinian abbot who is regarded as the "father of genetics". How chimpanzees crack nuts like ancient humans.