New Research In
Physical Sciences
Featured Portals
Articles by Topic
Biological Sciences
Featured Portals
Articles by Topic
Front Matter
Better understanding how the truffles reproduce has major implications for farmers, chefs, and foodies enamored with the expensive, pungent fungus.
Image courtesy of Shutterstock/Vitalina Rybakova.
Recent work looks to resolve a simmering dispute between two ways of measuring expansion, possibly pointing to a rethinking of the makeup of our universe.
Image © ESA and the Planck Collaboration.
In the News
Researchers report a species of early bird with a combination of bird-like and dinosaur-like bone morphologies, and the structure of the bird’s shoulder girdle highlights the role of developmental plasticity in the early evolution of birds, according to the authors.
A study suggests that the herbicide glyphosate disrupts bee gut microbiota, increasing bees’ susceptibility to pathogens, and that glyphosate’s effects may contribute to the largely unexplained increase in honey bee colony mortality.
Image courtesy of Vivian Abagiu (The University of Texas at Austin, Austin, TX).
A study finds that a fragment of an ancient retrovirus, integrated in human ancestors before the emergence of Neanderthals, is found more frequently in people who contracted HIV and hepatitis C through intravenous drug use, compared with control populations.
Image courtesty of Pixabay/typographyimages.
Sign up for Article Alerts
Science Sessions Podcasts
Robert Reed explains genetic controls on butterfly wing colors.
FEATURED QNAS
PNAS QnAs with NAS foreign associate and metabolic engineer Sang Yup Lee
