The Trend watch in the 3 August issue (Nature 548, 11; 2017) stated that the paper would be published on the arXiv preprint server. In fact, it was published at PeerJ Preprints.
The online version of the original article can be found at 10.1038/548011a
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Correction. Nature (2017). https://doi.org/10.1038/548141a