PNASNews

Cutting-edge news & reports from PNAS, one of the world's most-cited scientific journals, sibling journal of @PNASNexus & an official journal of @theNASciences.

[PNASNews @PNASNews]

In this issue: Lyme disease ecology in New York, evidence that a painted plaque suggests an Austronesian tradition preceded Neolithic pottery, and a stem cell-derived model of neurodegenerative retinal diseases. In PNAS: https://t.co/tFwkWfKG4Q

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2026 Issue 8 of @PNASNexus is now available! Explore new research on intermittent fasting and gene regulation; temperature-driven changes in Morpho butterfly iridescence; face-to-character biases in language models; and more. https://t.co/4qvmhYIUT3

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Civilian safety practitioners reduce crime by building relationships with people at hotspots of urban disorder. In San Francisco, behavioral health-related crimes fell meaningfully at locations with safety practitioners on duty. In @PNASNexus: https://t.co/6U2xp34j9b

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Explore anthropology research in PNAS, including studies on early human migration, genetic ancestry, language evolution, cultural transformation, and more. Discover work that connects past and present to deepen our understanding of humanity. 🔗https://t.co/toHPST7F6y

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Can adding #seaweed to #cow feed have a big impact on worldwide #methane #emissions? In PNAS Front Matter: https://t.co/gg15E0Iefk

#GreenhouseGas #MethaneEmissions #farming #clouds #microbiology #ClimateChange

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An analysis of tree-ring data from 1,200 fire-scarred trees suggests that the area of dry-conifer forest in New Mexico’s Jemez Mountains could be halved by 2055—a loss caused by mismanagement and wildfires made more destructive by climate change. In PNAS: https://t.co/wDMqitSO1Q

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Meet Dr. Hidde Ploegh of Boston Children’s Hospital, a @PNASNexus Associate Editor and distinguished NAS member who brings expertise in cellular and molecular medicine to the journal’s editorial board.

Explore the full Editorial Board: https://t.co/HEZTAQKxRG

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Honoring David Botstein, a pioneering geneticist and passionate educator who helped develop restriction fragment length polymorphisms as landmarks for the locations of genes in the human genome. Read the PNAS Retrospective: https://t.co/Z0C69QtcBC

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More than 100 pregnant women in Ecuador adopted a diet based on studies of nutrition in human evolution. Compared with controls, their babies had increased growth in subcortical brain regions linked to motor control, cognition, and signal transmission. https://t.co/7skH75xtk6

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How do #microplastics move through water and land? #EarthScientists find ways to track their journey with an eye toward #remediation. In PNAS Front Matter: https://t.co/H6lZNBSz8U

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As the climate changes, some mollusks will shrink to half their current size, while others will grow up to 15% larger, depending on lineage and location. The ecological and social consequences for marine ecosystems could be profound. In PNAS: https://t.co/okQIYPS8sb

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According to high-resolution satellite data, weak horizontal sea-surface temperature gradients on spatial scales of one kilometer to tens of kilometers suppress sea-surface cooling by tropical cyclones, favoring cyclone intensification. In PNAS: https://t.co/OmJ0ZMY5rg

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One of the most-viewed PNAS articles in the last week is “Multilevel sex-influenced neurobiological signatures of early life adversity.” Explore the article here: https://t.co/zdwCWHUfbq

For more trending articles, visit https://t.co/0EsuckNLwD.

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In this issue: Postglacial ecosystem development in Yellowstone National Park; the origins of Mercury’s magnetism; and primate foot kinematics and vertical climbing. In PNAS: https://t.co/xlCBtOBlyV

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Thirty-one people were studied as they formed speech sounds in their minds, such as “pa” and “ta.” Activity patterns in the motor cortex mirrored those used to make the mouth movements necessary to speak the same syllables out loud. In PNAS: https://t.co/3iRwxH5w4o

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The #neurobiology of how mice play follow the #leader. In PNAS Journal Club: https://t.co/unPiYau9XA

#leadership #follower #PrefrontalCortex #AnimalBehavior

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Soundscapes of ancient forests are made possible through reconstructions of the sound-producing structures of insects from the Jurassic period. These ancient relatives of today’s katydids lived in what is now Inner Mongolia, China. In PNAS: https://t.co/tVaCFGSaN8

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Materials under compression will eventually break, bend, or buckle. In some applications, this can be a feature rather than a bug. A study of controlled propagation of buckling events explores the possibilities. In @PNASNexus: https://t.co/7PuyECsBkp

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A study of blood and fecal samples from dogs chronicles extensive changes to the gut microbiome after switching to a low- carbohydrate diet. The specific changes depended on whether carbohydrate energy was replaced with fat or protein. In PNAS: https://t.co/iNZ0xWlgnW

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PNAS 2027 subscription rates are here! Get year-round access to high-impact research, Special Features, and 32,000+ pages of groundbreaking science, along with the full archive dating back to 1915. Subscribe today: https://t.co/Bom4MgSnOT

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A review discusses what is lost when assisted reproductive procedures bypass the fallopian tube. The fallopian tube is an active regulator of preimplantation embryonic development and a biosensor of embryo quality. In @PNASNexus: https://t.co/3L1yA8I0kv