Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. SignificanceSocial media has transformed the speed and scope of information dissemination. While academics use these platforms to promote their own and others’ research, their causal impact on hiring remains unclear. Furthermore, persistent disparities ...
Science Journals
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. SignificanceThis study sheds light on the origins and assembly of a temperate biodiversity hotspot. In examining oak evolution in Mexican and Central American mountains, we reveal that temperate forest tree dispersal into new habitats can drive rapid ...
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026.
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. SignificanceCommercial whaling devastated bowhead whale populations, and recovery has been slow and spatially heterogeneous. By reconstructing daily routes and hunting activities of more than 700 historic British and American whaling voyages, we mapped ...
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. SignificanceTrophic interactions underpin ecosystem structure and function, yet how past species losses, evolutionary histories, and environmental variability shape macroecological patterns of food webs remains poorly understood. We present continental-...
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. SignificanceDespite the widely accepted hypothesis that infectious disease drives HLA diversity, specific examples are rare. We show, in an antenatal cohort in KwaZulu-Natal, South Africa, that maternal HLA-B genotype significantly impacts HIV-1 survival ...
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. SignificanceThe differences between modern human and Neanderthal brains, as estimated from endocranial reconstructions, do not meaningfully exceed those among different modern human populations. Additionally, because cognitive ability is only very weakly ...
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. SignificanceEarth experienced extreme climate swings during the Neoproterozoic epoch, including the Sturtian glaciation, when ice likely covered the planet. Explaining aspects of the geologic record and the survival of life through this event has been a ...
Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. SignificancePrevious genetic studies indicate that bread wheat (Triticum aestivum L) originated approximately 8,000 y ago, with the distribution of its wild progenitor, goatgrass (Aegilops tauschii Coss.) suggesting that the South Caucasus or southwestern ...