Researchers at IceCube Neutrino Observatory detect high-energy neutrino emission from inner parts of Milky Way, providing conclusive evidence for galactic origin. The study's findings are consistent with cosmic rays' distribution and expected interactions within the Galaxy.
Researchers suggest Martian gullies could have formed by melting water ice during periods of high obliquity, contrary to previous CO2 sublimation-based theories. The study proposes a new mechanism for gully formation, incorporating both liquid water- and sublimating CO2 processes.
Rapid agricultural expansion in South American plains has led to increased flooding, as shallow groundwater tables and declining evapotranspiration reduce hydrological stability. The findings suggest that the conversion of native vegetation to crops contributes to these changes.
Research suggests generative AI models can create false and biased information that can be ingrained in people's beliefs. People are most influenceable when looking for info and hold stubbornly to it once received.
The presence of large herbivores like caribou and musk oxen slowed Arctic tundra diversity losses, contrary to declining sea ice. Herbivore exclusion led to faster biodiversity declines, while warming conditions with grazing allowed for slower losses.
Researchers discovered a unique structure in the mussel shell's hinge that combines biomineralized aragonite nanowires with a softer organic matrix to resist brittle fracture. The nanowires provide rigidity and distribute stresses, while the soft matrix absorbs compressive and shear stresses.
Research on pregnant individuals faces challenges due to restrictive abortion laws, which can expose participants to health risks or compromise informed consent. Researchers must consider provisions for safe abortion access and explicit informed consent documents to advance scientific knowledge.
Researchers have created an Aging Fly Cell Atlas, profiling <em>Drosophila</em> head and body tissues at different ages to understand the impact of aging on cell composition and gene expression. The study reveals dramatic changes in fat body nuclei and muscle nuclei with age.
Researchers warn of growing adverse impacts of light pollution on plants, animals, and entire ecosystems. Light pollution causes habitat loss, disrupts food webs, and declines insect populations.
A massive global study found five common shark species declined 60-73%, as overfishing removed sharks and prey, shifting reef communities towards ray dominance.
Researchers have pushed back the age of the massive Ontong Java Plateau eruption by 10 million years using high-precision argon isotope dating. The revised dates suggest the event occurred after the onset of Ocean Anoxic Event 1a, challenging previous theories about its cause.
Researchers found that taurine deficiency contributes to aging-related disorders in animals. Taurine supplementation increased median lifespan by 10-23% and improved muscle strength, coordination, and cognitive functions in mice. Human clinical trials are necessary to confirm its benefits and potential risks.
A new study found that COVID-19 lockdowns led to a 73% increase in mammal travel distance in areas with stricter policies, while short-distance movements decreased. Animals traveled closer to roadways and were less fearful of human presence in populated regions.
Researchers discovered a group of intestinal T cells with α4β7 integrin receptors that can either suppress or enhance anti-PD-1 immunotherapy in cancer patients. Targeting these cells may improve treatment outcomes and reduce resistance to immune checkpoint blockade.
A new study using coupled field observations and phytoclimatic modeling shows that climate is the dominant influence on African forest and savanna ecosystems. The findings suggest that spatial variation in climate can predict the occurrence of these ecosystems at both large and fine scales, challenging traditional views.
Researchers have developed a low-temperature method for 3D printing nanoscale optical-grade glass, reducing the temperature required by half. The approach enables the creation of high-resolution glass structures with excellent optical qualities, opening up new possibilities for microsystem technologies and applications.
A cross-cultural analysis of body-based measurements in 186 cultures worldwide found variations of the fathom, handspan, and cubit were most frequent, exhibiting striking similarities. Body-based units were especially common in ergonomic technologies like clothing and skis.
A special issue of Science presents whole genome data from 233 primate species, providing a more complete understanding of primate genetic diversity. The study explores the association between genomic variation and variables like climate and sociality, shedding light on conservation efforts.
Researchers have developed a new method for achieving autonomous realignment and self-healing in multilayered soft electronic devices. The approach enables functional recovery of damaged devices to 96% of their initial capacitance after mechanical damage, with potential applications in soft robots and underwater circuits.
Expert authors suggest a holistic approach to understanding compliance, considering legal and institutional aspects to generate trust among member states. They argue against one-size-fits-all solutions and formal sanctioning power, proposing a more nuanced approach to ensure effective pandemic prevention, preparedness, and response.
Researchers analyzed a comprehensive dataset from Catholic parish records and genotype data to reveal how local topographies influenced French Canadian relatedness. They found that geographic features, particularly river networks, shaped Quebec's population structure and contributed significantly to the French Canadian gene pool.
As Arctic warms, female arctic ground squirrels emerge from hibernation 10 days before males, disrupting reproductive rates and altering mortality rates. This phenological mismatch could have large ecological impacts on Arctic food webs.
Soil microbiota from stressful environments can enhance tree tolerance to drought, heat, and cold. Diverse microbial communities promote plant resistance to climate stress through various mechanisms.
A new study finds that smaller predators move into human-dominated areas to avoid large carnivores, but face higher mortality rates from human activities. This phenomenon, known as the 'human shield' effect, poses an ecological trap for mesopredators.
Existing global forests could store an additional 44.1 petagrams of carbon if left unmanaged, but this would only offset 4 years of CO2 emissions under current rates. The study's findings highlight the limited carbon sequestration potential of unmanaged global forests.
Researchers Troels Arbøll and Sophie Rasmussen review ancient DNA, cultural works, and medical records to show that kissing-transmitted diseases like HSV-1 were present in ancient periods, contradicting some recent studies. The emergence of romantic-sexual kissing may have had a secondary effect on disease transmission.
A global analysis by Fangfang Yao et al. reveals a widespread decline in lake water storage, with 53% of the world's largest lakes experiencing significant losses over the last 28 years. Climate warming, increased evapotranspiration, and human water consumption are identified as major drivers of this decline.
A new study reveals Homo species' preference for diverse habitats over the last 3 million years. Early African hominins like H. habilis and H. ergaster lived in open grasslands, while H. erectus adapted to temperate forests and colder habitats.
Scientists discovered that smaller brontotheres faced high extinction risk in crowded ecological niches, driving biased diversification towards larger sizes. This complex macroevolutionary pattern shows increased survival of larger species due to reduced competition.
Hammerhead sharks maintain elevated body temperatures during deep dives by minimizing heat loss, likely through 'breathing' cold water by closing their mouths and gill slits. This thermoregulation strategy could be widespread among other deep-diving sharks and fishes.
A new study using ancient DNA from northern and central Mexico reveals population continuity despite drastic environmental change, providing new insights into the region's demographic history. The research also identifies two 'ghost' populations contributing to pre-Hispanic populations, revealing a complex demographic landscape.
Researchers reconstructed ancient bacterial genomes from human and Neanderthal remains to discover previously unknown metabolites, including paleofurans. This breakthrough expands the ability to study microbial natural products, offering insights into the nutrition and health of early hominins.
A randomized controlled experiment involving 26,911 students at 22 diverse U.S. universities found that a low-cost online social-belonging intervention increased the rate of students completing their first year as full-time students, particularly among historically underrepresented groups. The study demonstrates the efficacy of this in...
Scientists observe streams of intergalactic gas enriched with elements heavier than helium surrounding a massive galaxy. The findings suggest that the gas was recycled during earlier periods of star formation and is now fueling the galaxy's rapid growth.
Researchers discovered a chemical defense mechanism in migratory locusts that deters cannibalism, reducing the formation of destructive swarms. The pheromone PAN protects individuals from being eaten by other locusts when population density increases.
Researchers engineered a synthetic gene oscillator in yeast cells, manipulating the expression of two transcriptional regulators to create sustained oscillations between cellular degeneration states. This delay enhances lifespan by 82%, offering a proof-of-concept for using synthetic biology to reprogram cellular aging. The findings ma...
The Zoonomia Project has cataloged the diversity in the genomes of 240 mammalian species, providing insights into human health and disease. The research identifies regions of the human genome that have remained unchanged for millions of years and reveals genetic variants linked to rare and common diseases.
Studying entangled California blackworms reveals new insights into the mechanisms and principles underlying the topology of tangled active matter. The findings could help guide the design of multifunctional active materials with unique topological properties.
Researchers have successfully developed a hybrid photonic neural network chip that can perform fast and efficient on-chip backpropagation training. This breakthrough paves the way for scalable, energy-efficient machine learning technologies with potential to reduce carbon footprint and costs of AI computation.
Researchers found elephant seals use short sleep cycles at depths below predators to enter full REM sleep with lower risk. These 'sleeping dives' are crucial for the species' survival in open ocean environments.
A new study suggests that private land conservation in Brazil's Cerrado region can protect up to 14.5% of threatened vertebrate species' ranges. The analysis found that restoring private protected areas is an important conservation goal, warranting special funds and attention.
The American Association of Science recommends that US universities develop a risk management framework for collaborations with China. This approach outlines clear lines that will not be crossed in collaborations, including avoiding training or research with China's military or defense universities.
A high-coverage genome analysis of two transmissible cancer lineages in Tasmanian devils reveals that DFT2 has a significantly higher mutation rate than DFT1. The study provides new insights into the evolutionary history and epidemiological implications of these contagious cancers.
Scientists discovered that savannah grasses existed in East Africa over 21 million years ago, transforming the landscape and driving skeletal adaptations in early hominoids. This finding challenges a longstanding theory and supports the idea that C4 grasses led to open landscapes that promoted hominoid evolution.
A study involving hibernating brown bears and chronically immobilized humans found reduced expression of platelet protein HSP47 to be protective against thrombosis. This finding is supported by research in pigs and mice, suggesting a conserved mechanism across several mammalian species.
Climate change is driving a shift towards more frequent flash droughts worldwide. The study, published in Science, reveals that regions with limited time for preparation are at highest risk. Early warning systems can help mitigate the impacts of these rapid-onset events.
A recent study using JWST observations of a compact galaxy at redshift 9.5 has provided insights into its physical properties. The analysis reveals that the galaxy has a remarkably small radius of 16.2 parsecs, suggesting high density star formation and an abundance of oxygen and hydrogen.
Researchers replaced reactive hydrogens in PHA plastics with methyl groups, enhancing thermal and mechanical properties. This approach enables closed-loop chemical recyclability, a crucial step towards increasing sustainable use of PHAs.
Researchers developed an implant that delivers electrical stimulation to specific spinal neurons to treat dangerously low blood pressure in people with spinal cord injuries. The treatment, called the neuroprosthetic baroreflex, has shown promise in clinical trials and could be used in hospitals and at home to monitor blood pressure.
The World Health Organization (WHO) is urging countries to share data on the origins of SARS-CoV-2 immediately. Scientists argue that early data from China could help prevent future pandemics by providing insights into the virus's transmission and potential animal sources.