Nature, Published online: 20 May 2026; doi:10.1038/d41586-026-01648-9arXiv’s stance on AI-hallucinated references is a good start, but not tough enough, say some researchers. Plus, the brain’s code seems to be in constant flux and how to learn to love networking.

Nature, Published online: 15 April 2026; doi:10.1038/d41586-026-01248-7Looking at a childlike version of your face might help you see childhood memories more clearly. Plus, some AI disease-prediction models are trained on suspect data and how thermal imaging can reveal night-flying birds.

Nature, Published online: 14 April 2026; doi:10.1038/d41586-026-01238-9Researchers are using airborne DNA to get snapshots of the make up of ecosystems. Plus, what scientists in Hungary think about the end of Viktor Orbán’s government and the penguins helping to monitor ‘forever chemicals’.