Genomes and Fossils Resolve a Century-Old Mystery of Insect Wing Evolution
A new phylogenomic and fossil-calibrated study confirms that mayflies and dragonflies form the ancient group Palaeoptera and that foldable wings ...
Tag: PNAS
Even in Death, Elephants Leave Nutrient Hotspots That Reshape the Savanna for Years
A long-term study in Kruger National Park shows that elephant carcasses create nutrient hotspots that alter soils, microbes, plants and ...
Honey Bee Stinger Revealed as Tiny Autonomous Double-Piston Venom Pump
High-speed video has revealed that the honey bee's detached stinger functions as a sophisticated autonomous double-piston micropump that keeps injecting ...
Water’s Hidden Shape Reveals the Trigger Point That Spreads Dementia Proteins
Northwestern University researchers have identified a single water-defined hotspot on tau proteins that drives the misfolding cascade behind Alzheimer's and ...
Bullfrog brains found to brew their own backup fuel when glucose runs dry
University of Missouri researchers found that bullfrog brains can produce ketone bodies locally when glucose is scarce, a built-in backup ...
How Colonization, Catastrophe, and Wetlands Shaped Segregation in a Chilean City
A PNAS study of Valdivia, Chile, traces how colonization, the 1960 earthquake, and wetland loss have produced urban segregation and ...
AI Turns Birdwatchers’ Notes Into a Goldmine of Ecological Data
University of Michigan researchers show that large language models like Claude and ChatGPT can mine millions of comments on citizen-science ...
Losing Plant Diversity Could Cut Grassland CO₂ Uptake by 15 Percent by 2050
A new PNAS modeling study from PIK and Kiel University finds that losing plant diversity could cut global grassland CO₂ ...
Matching Personalities Between Humans and AI Boosts Team Performance, Study Finds
A large randomized controlled experiment by MIT Sloan and Johns Hopkins researchers shows that matching the Big Five personality traits ...
Segregation’s Ecological Legacy: How Divided Cities Face Unequal Floods, Heat and Green Space
A PNAS special feature organized by Cary Institute researchers shows that segregation operates as a self-reinforcing social-ecological system shaping flood ...
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Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study
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University of Seville Breaks 120-Year-Old Mystery, Revises a Key Einstein Concept
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Bee body mass, pathogens and local climate influence heat tolerance
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Researchers record first-ever images and data of a shark experiencing a boat strike
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Groundbreaking Clinical Trial Reveals Lubiprostone Enhances Kidney Function
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