Every year, PNAS highlights articles that have made a large impact on public understanding of science and scientific inquiry. Read the 12 selected articles from 2024. PNAS research receives mentions ...

Edited by Anthony Leggett, University of Illinois at Urbana-Champaign, Urbana, IL; received October 25, 2024; accepted December 4, 2024 ...

Maternal exposure to high levels of the herbicide glyphosate may increase the risk for autism spectrum disorder (ASD) in offspring; however, the underlying mechanisms remain largely unknown. Maternal ...

This is an addendum toComplex viscosity of helical and doubly helical polymeric liquids from general rigid bead-rod theory ...

Migratory locusts display striking phenotypical plasticity. Gregarious locusts at high density can migrate long distances and cause huge economic losses of crops. By contrast, solitary locusts at low ...

Transparency of funding is necessary to achieve trust, but insufficient on its own. It must be accompanied by a transparent reporting of the organization’s activities to understand what it’s doing and ...

Giraffes congregate at the Copenhagen Zoo. The culling of a giraffe named Marius at this zoo in 2014 sparked a debate about the practice of euthanizing surplus animals at zoos. We argue that such ...

The inclination to explore across vast expanses has been a continual part of human history. In voyages across the Atlantic, or North America, one of the greatest obstacles was the availability of ...

Camouflage, including coloration that matches the environmental background, can help predators evade detection as they approach prey. Compared with camouflage that occurs in the daytime, nocturnal ...

The return of Mars samples to Earth is among the most ambitious goals of the spaceflight programs of the National Air and Space Administration (NASA) and the European Space Agency (ESA). Preparing for ...

The authors note that the affiliation for Andréa G. Grottoli should instead appear as School of Earth Sciences, College of Arts and Sciences, The Ohio State University, Columbus, OH 43210. The ...