On this day in history

150 years ago Alfred Russel Wallace sent a letter to Charles Darwin, describing natural selection.

55 years ago, Watson and Crick announced the structure of DNA.

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Today marks the final day of the month in which, 150 years ago, a naturalist in what is now Indonesia wrote a letter to Charles Darwin in which he gave a theoretical account of how types can evolve by natural selection so that new species will arise. Give it up, folks, for Alfred Russel Wallace…
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