The News story ‘How to kill wild animals humanely for conservation’ ( Nature 543, 18–19; 2017) misstated the affiliation for Sara Dubois. She is at the British Columbia Society for the Prevention of Cruelty to Animals. And the Editorial ‘Keep science on track’ ( Nature 542, 137; 2017) gave the wrong reference for research on the boycott of South Africa in the 1980s; it should have been F. W. Lancaster Perspectives on the Professions 15 (1), 2–4 (1995).