Commercial fishing can reduce the age and size at which fish mature. But it has been unclear whether this reflects changes in genes or in physical responses to the environment. A look at Atlantic cod provides an answer.
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Hutchings, J. The cod that got away. Nature 428, 899–900 (2004). https://doi.org/10.1038/428899a
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DOI: https://doi.org/10.1038/428899a
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