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PNAS commits to immediately and freely sharing research data and findings relevant to the novel coronavirus (COVID-19) outbreak.
See the free collection of PNAS coronavirus papers and learn more about our response to COVID-19.
See the free collection of PNAS coronavirus papers and learn more about our response to COVID-19.
Front Matter
To boost productivity, breeders can rapidly assess which plants grow the fastest, which genes help plants thrive, and which crosses produce an optimum gene combination.
Image credit: Norbert Kirchgessner (ETH Zürich, Zürich, Switzerland).
To best manage natural systems, modern societies must consider alternative views and interpretations of the natural world.
Implications range from elucidating metabolic pathways that help facilitate greenhouse gas release, to revealing compounds for medicine or pollution remediation.
Image credit: Mak Saito (Woods Hole Oceanographic Institution, Woods Hole, MA).
In the News
Wild hummingbirds can perceive a variety of nonspectral colors, accessing a rich color space for foraging, communication, and mate choice.
Image credit: Noah Whiteman (University of California, Berkeley, CA).
A massive volcanic eruption in Alaska in 43 BCE coincided with the fall of the Roman Republic and the subsequent rise of the Roman empire.
Image credit: Kerry Key (Columbia University, New York, NY).
A study identifies behavioral, psychological, and social factors that could predict human mortality.
Image credit: Pixabay/AbsolutVision.
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Juliana Vianna and Rauri Bowie explain the origin and diversification of penguins.
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