Fossilized remains of an arthropod from the Cambrian period provide an unusual example of preservation of the brain and nervous system, and shed new light on when and how these tissues evolved. See Letter p.258
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Budd, G. Cambrian nervous wrecks. Nature 490, 180–181 (2012). https://doi.org/10.1038/490180a
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DOI: https://doi.org/10.1038/490180a
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