The sustainable aviation challenge is attracting plenty of investment and brainpower—as well as government policies aiming to incentivize development. But the innovations coming out of these efforts ...

Edited by Joseph Kieber, The University of North Carolina at Chapel Hill, Chapel Hill, NC; received November 27, 2024; accepted January 7, 2025 ...

10 10 21 Undergraduate students (95.2% of the samples) across the U.S. and Canada and participants from one online panel (U.S. MTurk). 1.000 11 16 36 University students (~75%) and participants from ...

Coronal brain slice showing projections from different visual areas in the cerebral cortex to the ventrolateral geniculate nucleus (vLGN). These pathways are part of the circuit thought to mediate the ...

A yellow-breasted capuchin nut-cracking site, with the remains of the used hammerstone and resulting sharp-edged flakes and fragments atop a large stone anvil. The development of stone tools, ...

The authors note that Christopher J. Bakkenist should be added to the author list between Dmytro Kolodieznyi and Marcel P. Bruchez. Christopher J. Bakkenist should be credited with designing research, ...

Founded in 1914, PNAS publishes some of the world’s highest-quality and most significant research. Every paper at PNAS is handled by a member of the National Academy of Sciences, a nonprofit ...

Some historically persecuted large carnivore species in Europe and North America are now recovering and expanding into formerly occupied ranges. The spatial and temporal dynamics of wildlife ...

Edited by Anne C. Hart, Brown University, Providence, RI; received August 29, 2024; accepted December 19, 2024 by Editorial Board Member Yishi Jin Taken together, these results identify VHL-1 as a ...

The authors note that, due to a production error, each author’s affiliation appears incorrectly. Christian Jenewein’s affiliation should appear as “Donostia International Physics Center, Donostia/San ...

Wave impinging a canopy of seagrass mimics in a laboratory flume. Image credit: Marco Barretta (photographer). Seagrass beds not only provide habitat, improve water quality, and sequester organic ...