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 ...

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 ...

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 ...

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 ...

Zhang et al. (1) question whether our study (2) provides evidence of multiple parallel vector memories coexisting in bumblebees. They suggest that an alternate model, where a single vector memory is ...

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

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 ...

Jeroen A. J. M. van de Water, Tugba Bagci-Onder [...] Khalid Shah The authors note that Fig. 1J appeared incorrectly. The corrected figure and its legend appear below. The online version has been ...

We thank the authors for acknowledging the seminal nature of our work (1). We have not conclusively addressed the question of Piezo1 activation during splenic filtration in vivo. Our aim was to ...

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 ...