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

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 ...

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 ...

In the article “Neuronal innervation regulates the secretion of neurotrophic myokines and exosomes from skeletal muscle,” Huang et al. demonstrate that innervated skeletal muscle produces neurotrophic ...

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 ...

This work was supported by the NSF (CBET-1932192, Expeditions-2123781), NIH (R61/R33 HL159948), Alzheimer’s Disease Association grant (2019-AARG-NTF-644507), and a Chan Zuckerberg Biohub Chicago ...

The authors note that the Acknowledgments appeared incorrectly and mistakenly excluded information regarding project funding. The following statement should be added to the Acknowledgments: “The ...

Every year, US dairy producers churn out billions of pounds of cheese—over 14 billion in 2023 alone. As that cheese heads to market, producers must contend with what’s left behind: roughly 6 billion ...

PNAS: Welcome to Science Sessions, the podcast of the Proceedings of the National Academy of Sciences, where we connect you with Academy members, researchers, and policymakers. Join us as we explore ...