PNAS

Early evidence for a stable and flexible foraging niche in the evolution of Homo

The Koobi Fora Formation preserves a rich Plio-Pleistocene record of hominins, fauna, and environments, providing a cornerstone for understanding human evolution. Nearly all zooarchaeological evidence ...
PNAS

Acupuncture does not work and has no place in science-based medicine

In the PNAS of March 4, 2026, Lynne Peeples presented a news feature on the “science behind acupuncture” (1). We find this article unbalanced. It lacks a critical analysis of what acupuncture is and ...
PNAS

Did it all begin with hydrogen cyanide?

Did it all begin with hydrogen cyanide?
PNAS

Climatic mechanisms underlying a southwestern French Neanderthal refugium at the onset of the last glaciation

Open in Viewer Climatic configuration of the western European margin mid-latitudes during the MIS 5a/4 transition. (Top) Global and Greenland paleoclimatic records compared to the sea surface ...
PNAS

Force patterning drives quasistratification and graded tissue-scale spatial order in auditory epithelia

The ordered arrangement of mechanosensory hair cells in vertebrate auditory epithelia relies on mechanical interactions among multiple cell types. Yet, how local mechanical heterogeneity produces ...
PNAS

On the Rate of Growth of the Population of the United States since 1790 and Its Mathematical Representation

On the Rate of Growth of the Population of the United States since 1790 and Its Mathematical Representation1 ...
PNAS

High bacterial diversity drives the suppression of a soilborne plant disease

Contributed by James Tiedje; received April 23, 2025; accepted January 26, 2026; reviewed by Gwyn A. Beattie and Corné M. Pieterse Soilborne diseases pose a significant threat to plant health, often ...
PNAS

Exercise works—if mitochondria do

Exercise works—if mitochondria do E. García-Domínguez et al., Mitochondrial remodeling in skeletal muscle underlies exercise-induced reversal of age-associated functional decline in mice and humans.
PNAS

Danger at the border: Rac turns nibblers into murderers

Join the global community of subscribers to PNAS, the flagship journal of the US National Academy of Sciences, a mission-driven nonprofit society. PNAS is one of the world's most-cited scientific ...
PNAS

Reconfigurable hydrogel interfaces for soft brain electrodes

Reconfigurable hydrogel interfaces for soft brain electrodes Join the global community of subscribers to PNAS, the flagship journal of the US National Academy of Sciences, a mission-driven nonprofit ...
PNAS

Microheterogeneous singlet oxygen generation at air–water interfaces

Singlet oxygen (1 O 2) drives key photochemical reactions in the atmosphere and natural waters, yet its spatial distribution in multiphase systems remains unexplored. Here, we reveal strong microscale ...
PNAS

Retraction for Liaki et al., A targeted combination therapy achieves effective pancreatic cancer regression and prevents tumor resistance

The editors are retracting this article due to an undisclosed relevant competing interest at the time of submission. NAS Member Contributing author, Mariano Barbacid, and two coauthors, Vasiliki Liaki ...