A new study predicts increasing wildfires and insect outbreaks in European forests due to climate change, altering landscapes and biodiversity. The model simulates changes in forest disturbance rates under three climate scenarios, with wildfire and bark beetle outbreaks projected to intensify.
Early human-Neanderthal interbreeding was primarily between male Neanderthals and female humans, resulting in unevenly distributed Neanderthal ancestry. This pattern can be explained by natural selection eliminating disadvantageous X-chromosome variants or sex-biased mate preference.
New CAR T cells engineered to detect low levels of CD70 show promise in eradicating kidney, ovarian, and pancreatic tumors in preclinical models. This breakthrough provides a potential strategy for treating multiple solid tumor types with targeted immunotherapy.
New guidelines recommend strengthening legislative protections against genetic discrimination in insurance, including clearly defining genetic information and regulating its use. State lawmakers should consider carefully wording restrictions on discriminatory practices to ensure the efficacy of current policies.
A new study reveals widespread and accelerating declines of North American bird populations, particularly in areas with intensive agriculture. The research found that 47% of species studied show significant population declines, with many hotspots experiencing accelerated loss.
Researchers developed a method to extract internal representations of knowledge from AI models, allowing for monitoring and steering towards improved output. The technique, using Recursive Feature Machine, revealed transferable concept representations across languages, enabling multi-concept steering.
A recent study sequenced cancer genes in domestic cats, comparing them to human cancer-causing mutations. The researchers identified similar oncogenes and tumor-predisposing genes in both species, which could inform veterinary cancer treatments and human medicine.
A new Spinosaurus species discovered in Niger suggests a third phase of evolution for the massive fish-eating dinosaurs. The fossil find indicates that spinosaurs like S. mirabilis specialized as shallow water predators in northern Africa and South America.
Researchers created 'cyborg' organoids that combine stem cell-derived islets with stretchy electronics to study glucose regulation and maturation of α and β cells. The device enhances glucose responsiveness and reveals how it's affected by chemicals and circadian hormones.
Researchers have observed a massive star in the Andromeda Galaxy quietly dying and collapsing into a black hole without producing a supernova. The findings provide strong evidence for 'failed supernovae' producing stellar-mass black holes, which are difficult to detect due to weak energy signatures.
Researchers discovered that elephant whiskers change material properties from base to tip, amplifying tactile signals and enabling precise navigation. This 'physical intelligence' allows elephants to perform delicate tasks with remarkable precision.
A study suggests that breeding trees with 70-85% American chestnut ancestry can result in resistant hybrids. The authors also found that Chinese chestnuts contain compounds inhibiting fungal growth, which could be used to improve resistance in American chestnuts.
A sweeping 10-year fishing ban on China's Yangtze River has halted 70 years of freshwater biodiversity decline. The ban, coupled with improved water quality and environmental management, has led to a significant increase in fish biomass and the recovery of endangered species.
Meha Jain's research uses satellite data and machine learning to understand how smallholder farms adapt to climate change, revealing nuanced patterns of groundwater use and environmental impact. Her work aims to inform sustainable production strategies for food security, with a focus on identifying effective interventions.
A temporary weakening of the atmosphere's chemical capacity led to a sharp increase in methane levels between 2020 and 2021. The surge was driven by increased natural emissions and a decline in oxidizing capacity, particularly fewer OH radicals available for breaking down methane.
The study finds that pesticide toxicity is increasing globally, with a small number of highly toxic chemicals dominating the risks. The majority of pesticide use and harm are attributed to fruits and vegetables, corn, soybeans, cereals, and rice.
Researchers have successfully demonstrated device-independent quantum key distribution over 100 km optical fibers, marking a significant step towards a quantum-secure internet. The breakthrough achieves provably secure quantum key generation over long distances using entangled atoms linked by high-quality optical fibers.
Rapidly advancing AI systems trained on biological data pose significant biosecurity risks, highlighting the need for flexible governance frameworks. Targeted controls can restrict sensitive pathogen data while allowing most scientific data to remain openly available.
Unrepaired DNA-protein crosslinks cause premature aging and embryonic lethality in mice by triggering an innate immune response. Targeting innate immune signaling may offer a therapeutic strategy for human disorders like Ruijs-Aalfs progeria syndrome.
Researchers argue that acknowledging and planning for limits in fossil fuel systems is essential for a safe and just energy transition. Failing to do so may trigger service collapses, safety hazards, economic shocks, and environmental harm.
A study analyzing twin cohort data found that genetics may explain ~50% of human lifespan, with a significant increase to approximately 55% when external mortality is accounted for. This estimate aligns with the heritability of other complex physiological traits and species life-span studies.
A new study reveals that human foragers heavily rely on social information when making decisions during ice fishing competitions. They adapt their behaviors based on what they observe from others, such as where competitors fish and how long they stay. This finding provides insight into how groups collectively respond to environmental c...
Researchers use ground-based seismic sensors to detect sonic booms from reentering space debris, estimating its trajectory, size, composition, and potential impact locations. The approach was tested on the Shenzhou-15 orbital module's reentry, revealing a progressive fragmentation pattern that matched eyewitness reports.
A 5,500-year-old Treponema pallidum genome from Colombia sheds light on the emergence of syphilis, suggesting its origin was linked to social and ecological conditions of hunter-gatherer societies rather than agricultural intensification. The study's findings expand our understanding of treponemal diseases worldwide.
Malicious AI swarms can generate vast amounts of persuasive content, infiltrate online communities, and create adaptive campaigns that harm democratic discourse. The authors propose a distributed 'AI Influence Observatory' to guide independent oversight and action.
Researchers discovered that endogenous retroviruses play a crucial role in early human embryo development. These genetic remnants of ancient viral infections help drive the activation of genes required for successful development, with reduced expression leading to impaired zygotic genome activation and embryo arrest.
A new study shows that chronic low-dose pesticide exposure reduces the life span of wild lake fish in China by accelerating physiological aging. Fish from pesticide-impacted lakes exhibited shortened telomeres and truncated population structures, dominated by younger individuals.
The article reviews AI's potential to improve mental health diagnoses, monitoring, and treatment while addressing unique challenges such as biased training data and patient privacy concerns. The authors argue for human-centered approaches and coordinated oversight to ensure responsible AI deployment in mental health care.
Researchers have mapped Antarctica's subglacial topography using satellite data and physics of ice flow, revealing previously unseen geological structures. The detailed map improves ice sheet models and guides future geophysical surveys to reduce uncertainty in sea-level rise projections.
Research shows that beige fat surrounding blood vessels helps regulate blood pressure, promoting healthy vascular function even during obesity. Activating thermogenic fat tissue may reduce the risk of cardiovascular disease. Beige perivascular adipose tissue supports healthy blood vessels and blood pressure control.
A new study by Shany Dror and colleagues reveals that 'gifted word learner' dogs can learn new words by overhearing their owners' conversations, similar to 18-23-month-old children. These dogs demonstrate exceptional language abilities, mapping new words to objects even when they are not presented simultaneously.
A dramatic decline in fentanyl overdose deaths may be linked to an international supply shock in 2023. Researchers found that seizures and purity of fentanyl seized during this period declined concurrently, suggesting a disruption in the illicit trade.
Researchers observed a jet from an active galactic nucleus driving a gas outflow in nearby galaxy VV 340a. The outflow rate is large enough to affect the host galaxy's star formation rate.
Studies in topological condensed matter physics suggest that presenting larger sets of data and disclosing full study details can mitigate misleading 'smoking gun' claims. By exploring alternative scenarios, researchers can reduce confirmation bias and increase the reliability of findings.
A genomic study reveals that pigs in the Pacific islands descended from domestic pigs brought by Austronesian-speaking groups from Southeast China and Taiwan about 4,000 years ago. This suggests that humans played a significant role in introducing pigs to new regions, with limited genetic mixing with local populations.
A newly identified genetic variant has been found to reduce the risk of leukemia by slowing the growth of mutated blood stem cells. The variant, rs17834140-T, weakens the activity of a key gene in stem cell maintenance, leading to suppressed competitive growth of mutant stem cells.
A Saturn-mass rogue planet has been detected via microlensing event observation from both Earth and space, enabling direct measurement of its mass and distance. The discovery provides key findings on the diverse pathways of planetary ejection, shedding light on how planets can form and become isolated.
The first Editorial of 2026 discusses AI's impact on the scientific community. The journals use select AI tools, with encouraging results in data sharing among published research articles.
Large language models are transforming scientific production by boosting output but decreasing quality, according to a recent study. LLM adoption also leads to more diverse literature references, while robust quality-assessment frameworks remain crucial.
Researchers developed LightGen, an all-optical chip that performs advanced generative AI tasks with remarkable speed and efficiency. The chip hosts over two million photonic neurons, enabling complex tasks such as high-resolution image synthesis and video manipulation.
Global renewable energy growth accelerates, covering all new electricity demand in the first half of 2025, with solar and wind leading the way. China's manufacturing dominance makes small-scale rooftop solar systems widely accessible, providing reliable energy security for millions across Europe, South Asia, and the Global South.
A new study uses high-resolution GHGSat satellite observations to estimate facility-level methane emissions from thousands of oil, gas, and coal facilities globally. The findings provide a more detailed picture of global inventories and offer insights for mitigation strategies.
Plants have evolved thermogenic strategies to attract pollinators, including generating heat through cellular respiration. Cycads rely on specialized beetle pollinators and exhibit daily bursts of infrared radiation in the afternoon and early evening, which is sufficient to attract these insects.
A new index tracks the price of fake-account text verifications, revealing price spikes around elections and market trends that reflect national telecom costs. The findings highlight the economics underlying the online manipulation economy and suggest potential points of intervention to curb mass account fabrication.
Experts discuss GLP-1 drug efficacy in treating obesity and its associated health issues. Key findings include the neurobehavioral links between mental health and obesity, as well as policy implications for access to these treatments.
A recent study investigated the mechanisms behind AI political persuasion, finding that post-training and prompting are key levers. The research revealed a persuasion-accuracy tradeoff, highlighting the need for policymakers to reassess the risks of persuasive AI.
A new study reveals that Nanotyrannus lancensis was a fully mature, distinct species of smaller tyrannosaurid, not a juvenile T. Rex. The discovery sheds light on late Cretaceous ecosystems, suggesting greater predatory diversity than previously recognized.
A recent study by Marco de Martino and colleagues sheds new light on the domestication of cats, suggesting they originated from North African wildcats rather than the Levant. Genetic analysis reveals that true domestic cats only appeared in Europe and southwest Asia several thousand years after the Neolithic.
In a groundbreaking study, macaques were found to synchronize their taps with musical beats in real-time, even when presented with new songs. This ability to perceive and move to rhythm suggests that the roots of beat perception may be more widespread than previously thought.
A new study using an AI-powered browser extension reveals that even small changes in exposure to hostile political content on X (formerly Twitter) can measurably influence feelings toward opposing political parties. The findings provide direct causal evidence of the impact of algorithmically controlled post ranking on a user's social m...