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Roman Empire’s collapse created a genetic melting pot in Europe

mercredi 29 avril 2026 par Ewen Callaway

Nature, Published online: 29 April 2026; doi:10.1038/d41586-026-01395-xGenome evidence points to a slow blending of peoples — not a violent tide of invaders — that laid the foundations of modern Europe’s diverse ancestry.

Nature

Daily briefing: Octopuses’ strange brains might teach us what intelligence really is

mercredi 29 avril 2026 par Flora Graham

Nature, Published online: 29 April 2026; doi:10.1038/d41586-026-01431-wCephalopods are very smart, but have brains that evolved very differently than vertebrates. Plus, detailed maps of olfactory receptors in mice transform what we know about (...)

Nature

Engineered blood clots stop bleeding in seconds

mercredi 29 avril 2026 par Malcolm Xing, Gaoxing Luo

Nature, Published online: 29 April 2026; doi:10.1038/d41586-026-01150-2Red blood cells have been modified to form strong clots that halt any bleeding almost instantly and then promote tissue regeneration.

Nature

Submicrometre sampling of living cells by macrophages

mercredi 29 avril 2026 par Amy C. Fan, Rukman R. Thota, Nina Serwas, Vivasvan S. Vykunta, Kyle Marchuk, Megan K. Ruhland, Lauren Liu, Grace Johnson, Austin Edwards, Matthew F. Krummel

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10435-5Macrophages can sample antigens from living cells through a trogocytosis-like mechanism that routes ingested material away from degradation, a finding that delineates a previously unknown pathway for antigen presentation to (...)

Nature

Racial diversity in higher education is associated with higher student salaries

mercredi 29 avril 2026 par Debanjan Mitra, Peter N. Golder, Mariya Topchy

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10425-7A longitudinal study shows that racial diversity in higher education is associated with higher student salaries at graduation, indicating that policies to increase or leverage racial diversity enhance human capital and (...)

Nature

Postprandial lipid metabolism durably enhances T cell immunity

mercredi 29 avril 2026 par Alok Kumar, Dayana B. Rivadeneira, Isha Mehta, Bingxian Xie, Rachel Cumberland, Supriya K. Joshi, Jitendra S. Kanshana, William G. Gunn, Victoria Dean, Angelina Parise, Kristin Morder, Erica S. Myers, Steven J. Mullett, Richard T. Cattley, Stacy L. Gelhaus, Abigail E. Overacre-Delgoffe, Jishnu Das, William F. Hawse, Alison B. Kohan, Greg M. Delgoffe

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10432-8Experiments in mice and humans show enhancement of T cell function following fasting and refeeding, caused by persistent immunometabolic reprogramming, with potential implications for nutritional interventions and adoptive (...)

Nature

Intrinsic polar vortex crystals in A-site layer-ordered perovskites

mercredi 29 avril 2026 par Chao Xu, Nengneng Luo, Junyi Yue, Changsheng Chen, Tieyuan Bian, Chi Zhang, Xiangli Che, Jianwen Liang, Molly Meng-Jung Li, Jun Yin, Zhen Chen, Shujun Zhang, Xiaoqing Pan, Ye Zhu

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10470-2A two-dimensional polar hedgehog lattice spontaneously forms in layer-ordered perovskites, showing stable topological ferroelectric states without external constraints and enabling new pathways for functional material (...)

Nature

Demography and life histories across the Roman frontier in Germany 400–700 ce

mercredi 29 avril 2026 par Jens Blöcher, Leonardo Vallini, Maren Velte, Raphael Eckel, Léa Guyon, Laura Winkelbach, Mark G. Thomas, Nadia Gharehbaghi, Cassandra T. Mitchell, Jonas Schümann, Sophie Köhler, Elsa Seyr, Katharina Krichel, Sophie Rau, Jana Hirsch, Jana Duras, Paul Cloarec-Pioffet, Andreas Füglistaler, Kristin Klement, Miriam Wilkenhöner, Lisa Vetterdietz, Francesca Gentilin, Melany Müller, Anna-Lena Mücke, Nicoletta Zedda, Youssef Tawfik, Eveline Saal, George McGlynn, Barbara Bramanti, Jörg Orschiedt, Regina Molitor, Barbara Fliß, Ines Spazier, David Shankland, Claus Vetterling, Kurt Karpf, Vera Planert, Stefan Hölzl, Silvia Codreanu-Windauer, Dieter Quast, Ilija Miki?, Sven Fiedler, Bernd Päffgen, Maxime Brami, Thomas Richter, Raphaëlle Chaix, Susanne Brather-Walter, Peter Steffens, Markus Marquart, Thomas Becker, Jochen Haberstroh, Mischa Meier, Sebastian Schmidt-Hofner, Sebastian Brather, Michaela Harbeck, Steffen Patzold, Daniel Wegmann, Joachim Burger

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10437-3Analysis of 258 ancient genomes from southern Germany reveals a major demographic shift during the late fifth century, yet family structures persisted from Late Roman times, demonstrating cultural continuity despite profound (...)

Nature

Prime assembly with linear DNA donors enables large genomic insertions

mercredi 29 avril 2026 par Bin Liu, Andrew Petti, Xuntao Zhou, Haoyang Cheng, Jenny Gao, Matthew Yee, Youwei Qiao, Yanjun Zhang, Lin Zhou, Scot A. Wolfe, Tingting Jiang, Erik J. Sontheimer, Wen Xue

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10460-4Prime assembly can initiate Gibson-like assembly in cells to generate gene insertions without double-stranded DNA breaks, recombinases or homology-directed (...)

Nature

Uncertain dynamic response of mid-latitude winter precipitation

mercredi 29 avril 2026 par Lei Gu, Dominik L. Schumacher, Sebastian Sippel, Erich M. Fischer, Istvan Dunkl, Robin Noyelle, Jitendra Singh, Lorenzo Pierini, Reto Knutti

Nature, Published online: 29 April 2026; doi:10.1038/s41586-026-10474-ySeparating the anthropogenic forced thermodynamic and dynamic components from internal variability in winter precipitation trends in the mid-latitudes shows that thermodynamic effects agree with models and observations but (...)

Nature