Correction to: Nature https://doi.org/10.1038/s41586-019-1520-9, published online 28 August 2019.

In this Letter, owing to an error in the production process, author Moises Exposito-Alonso was inadvertently associated with the affiliation ‘Globe Institute, University of Copenhagen, Copenhagen, Denmark’, and instead should have been associated with the present address: ‘Department of Integrative Biology, University of California Berkeley, Berkeley, CA, USA.’. The Letter has been corrected online.