Proceedings of the National Academy of Sciences (PNAS)

Vaccine data suggest immunity could mitigate dementia. What’s the biology behind these apparent effects?

In 2013, a vaccine policy inadvertently launched a massive natural experiment that would offer new clues about the roots of ...
PNAS

Correction for Callaway et al., Nanoscale dynamics of the cadherin–catenin complex bound to vinculin revealed by neutron spin echo spectroscopy

The authors note that Fig. 2 appeared incorrectly. “Fig. 2F was mistakenly a duplicate of Fig. 2E during final assembly of the composite figure.” The updated figure appears below. The published paper ...
PNAS

Correction for Rørstadbotnen and Landrø, Detecting silent whales using seabed fiber-optic cables

Correction for “Detecting silent whales using seabed fiber-optic cables,” by Robin André Rørstadbotnen and Martin Landrø, which published June 23, 2026; 10.1073/pnas.2603077123 (Proc. Natl. Acad. Sci.
PNAS

Retraction for Wang et al., Chemical ecology and convergent evolution of natural hallucinogens: From ecological defense to conserved neural targets

The editors are retracting this article because of undisclosed competing interests involving the handling editor and a reviewer. As a result, PNAS cannot be confident that the manuscript received an ...
PNAS

Correction for Chi et al., Urban tree canopy fragmentation and child mortality in low- and middle-income countries

The authors note that the affiliation for Simone Fatichi should appear as Department of Civil and Environmental Engineering, College of Design and Engineering, National University of Singapore, ...
PNAS

Correction for Doughty et al., Compounded effects on wetland greenhouse gas fluxes from climate change and water management along a saline to freshwater gradient

The authors note that W. Barclay Shoemaker should be removed from the author list. Instead, the following statement should be added to the Acknowledgements: “We would like to thank Dr. W. Barclay ...
PNAS

AI cannot replace human participants in behavioral research

AI tools offer researchers real benefits, including literature reviews, data analysis, and even drafting articles. A more troubling use of this technology, however, is becoming widespread. Researchers ...