How did life on earth begin? How did the complex DNA-based life forms emerge from a warm sea and a batch of basic chemicals? This article by Martin Rahm and colleagues gives us a clue – and it is very strange. Because — life on earth may have begun with the help of a highly poisonous compound, HCN, hydrogen cyanide, a molecule composed of one atom each of hydrogen (element #1), Carbon (element #6) and Nitrogen (element #7) — very........

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