A study of Truncorotalia fossils found rapid shell shape changes 5.1 million years ago, potentially observing quantum evolution at a species level. This challenges previous theories of gradual evolution in planktonic forams.
A recent study uses metabolome analysis to identify a link between metabolite changes and weight, revealing that genetics don't correlate closely with obesity. The research suggests new ways to measure obesity and health risks beyond traditional BMI measures.
Researchers developed a computational method to link individuals in ancestry databases to those in law-enforcement databases, achieving accurate matches for over 30% of close relatives. The approach could have significant implications for forensic genetics and genomic privacy.
Researchers found a species of blind cavefish lacking an ancient DNA repair system, previously known only in placental mammals. The discovery supports the 'nocturnal bottleneck' theory, suggesting ancestors of modern mammals lived in darkness before dinosaurs.
Researchers accidentally convert mature inhibitory neurons into dopamine-producing cells using a cocktail of proteins. The new cells show rhythmic activity and network connections similar to native dopaminergic neurons.
Researchers have successfully produced healthy mice with two mothers, who go on to have normal offspring of their own. In contrast, mice with two fathers only survived for a couple of days. The breakthrough uses haploid embryonic stem cells and targeted gene editing to overcome genomic imprinting barriers.
A study found that viruses influenced the evolution of humans, particularly in adapting to pathogens. Neanderthal DNA was shared with modern humans, providing resistance to viruses, and its presence suggests selective benefits.
For the first time, researchers have shown that young wild sparrows can learn to sing a new tune by listening to experimental vocal tutors. The birds then pass on these new songs to subsequent generations, confirming the ability of wild birds to learn and adapt their songs through exposure to adult birds.
A study published in Joule found that large-scale US wind power generation would warm the Continental United States by 0.24 degrees Celsius due to heat redistribution in the atmosphere. This warming effect could take roughly a century to offset with wind-related reductions in greenhouse gas concentrations.
Researchers sequenced 141,431 women's genomes using non-invasive prenatal testing data, identifying patterns in ethnic groups' evolutionary history and novel genetic loci linked to height and BMI. The study provides insights into disease risk and epidemiology in Chinese populations.
A Mediterranean diet increased Lactobacillus abundance in mammary glands of macaque monkeys, a nonhuman primate model of women's health. This finding suggests that diet directly influences microbiome populations outside the intestinal tract and may impact breast cancer risk.
Researchers found that treating ants with dopamine increased individual foraging trips and sensitivity to humidity. The team also used a dopamine inhibitor to verify their results, showing that increased dopamine levels led to more foraging and improved colony behavior.
Researchers found two new genetic variations of H7N9 and H7N2 subtypes in unvaccinated ducks, indicating the virus has adapted to ducks. The vaccine largely prevented H7N9 infection in chickens, but the virus can still replicate in ducks.
Researchers describe new species Ledumahadi mafube, a giant relative of Brontosaurus that walked on all fours. The discovery sheds light on the evolution of sauropods and reveals that massive body sizes were possible in early four-legged dinosaurs.
Scientists have developed a solar flow battery that can store sunlight as chemical energy for later use. The device can be used to provide electricity in remote regions, making it an attractive solution for off-grid electrification.
Researchers discovered that older mice exhibit increased tissue regeneration and decreased scar formation in skin wounds. The findings were confirmed in human studies, suggesting that aging suppresses the circulating factor SDF1, which promotes scar formation. The study's authors hope to develop a drug to prevent scarring in humans.
A new HIV immunotherapy study has demonstrated the safety and tolerability of a cell therapy approach involving ex vivo expansion of T cells. The study found that the treatment was well-tolerated with few adverse events, although no significant enhancement of the magnitude of the HIV-specific immune response was observed.
Researchers found that octopuses, which are typically solitary and asocial, become more interested in interacting with each other when under the influence of MDMA. The study suggests that common molecular pathways enable serotonin to encode social behaviors in both humans and octopuses.
Human skeletal stem cells have been isolated from fetal and adult bones, providing a breakthrough in understanding the molecular diagnosis and treatment of skeletal diseases. The discovery enables researchers to create a detailed lineage map of stem-cell-mediated formation of skeletal tissues in humans.
A six-year study of Hadza hunter-gatherer people in Tanzania found that their willingness to share depends on the group they live with, with generosity clustering within residence groups. This suggests that sharing is driven by local group norms and behavior, rather than individual tendencies.
The kiwifruit's ancestors duplicated their DNA in two events to produce extra copies of genes, including those for creating and recycling vitamin C. This allowed the fruit to thrive with increased vitamin C production.
Researchers at DeepMind and universities reveal a novel brain mechanism that links episodic memories to solve problems. The discovery suggests the hippocampus recirculates activation back into itself, triggering related memory retrieval.
Researchers have found that BPA replacements in plastics cause reproductive problems in lab mice, including chromosomally abnormal eggs and sperm. The study suggests that exposure to these chemicals could carry over to future generations through their effects on the germline.
Researchers found that people display confirmation bias when judging the direction of moving dots and the average of a series of numbers. This bias is linked to selective attention, where people prioritize information consistent with their initial choice.
A study in Japanese patients found that common genetic variations, including copy number variations (CNVs), underlie both autism spectrum disorder and schizophrenia. The researchers identified 12 CNV loci associated with these disorders and observed an overlap of pathogenic CNVs between the two conditions.
A new study challenges the effectiveness of probiotics in boosting digestive health. Researchers found that many people's gut tracts prevent standard probiotics from successfully colonizing them. Additionally, taking probiotics after antibiotics may delay the return of normal gut bacteria and gene expression.
A new AI-powered tool, HEAL, analyzes genome sequences and electronic health records to predict individual risk for developing abdominal aortic aneurysm. The tool may one day help diagnose, treat, and prevent diseases such as AAA, neurological disorders, and cardiovascular conditions.
Researchers have found that tau protein interferes with the nucleus's ability to communicate with the cell, disrupting the function of the nuclear pore complex. This alteration accelerates tau aggregation and neurofibrillary tangle formation, leading to neural dysfunction and death in Alzheimer's disease.
A new study published in Cell Metabolism found that limiting the times when lab mice eat can correct obesity and other metabolic problems, even when they're fed an unhealthy diet. The results suggest a previously unknown link between disruption of the clock and eating behavior.
A new intelligent machine, Image-Activated Cell Sorting (IACS), sorts cells based on their spatial and morphological properties using an image-driven approach. The platform has been optimized for analyzing individual cells and holds promise for making machine-based discoveries in biological sciences.
Researchers advise caution on new pebble-bed nuclear reactors due to potential for accidents and inadequate safety measures. The design lacks key safeguards, including a high-pressure containment structure and redundant cooling system, increasing the risk of radioactive material release.
Studies found associations between teleological thinking, creationism, and conspiracism, suggesting these beliefs share a common cognitive bias. Researchers aim to raise awareness about the flaws of conspiracy theories by highlighting their reliance on teleological reasoning.
A new interaction between plant and insect parasites is found when the two exist on a shared host. The parasite-leeches nutrients and moisture away from the wasp larvae developing in the tree, while also attacking unusual growths caused by the wasps. This discovery has implications for agriculture and medicine.
Researchers found that men and women show surprising differences in perceiving motion, with men picking up on visual motion faster than women. The study suggests that the difference may be due to disrupted processes in the brain that down-regulate neural activity in males.
Researchers have discovered the earliest definitive fossil evidence of insect-pollination in ancient cycads, dated to 99 million years ago. The discovery of an amber-trapped boganiid beetle shows special adaptations for transporting pollen, indicating a probable ancient origin of beetle pollination.
A recent study found that when phytoplankton is infected with a virus, it releases large amounts of chalky particles into the air, affecting cloud properties and Earth's energy balance. The research suggests that these emissions play a significant role in shaping atmospheric conditions.
A review by Yale psychologist Yarrow Dunham suggests that ingroup bias is a natural phenomenon driven by membership in a social group, explaining why people favor their own group over others. This bias may have evolved to boost group living and social learning.
Researchers discovered elephants' ability to resist cancer stems from the 'zombie LIF6' gene, which kills cells poised to become cancerous. This strategy may inspire new treatments for humans by mimicking the gene's behavior or activating its existing copies.
A study found that long, noncoding stretches of DNA in a calcium transport gene may predispose individuals to schizophrenia and bipolar disorder. These 'hidden variants' could help identify patients at risk and tailor treatments.
Researchers demonstrate that a single transplantation of iPSC-derived macrophages into the lungs of mice with herPAP can effectively treat this life-threatening disease. The transplanted macrophages adapt and differentiate to function efficiently, providing long-term therapeutic benefits.
A proof-of-concept study found that antibiotic treatment prior to vaccination increased viral shedding in healthy adult men, while narrow-spectrum antibiotics showed a slight increase in early vaccine boosting. The results suggest a potential correlation between the microbiome and vaccine performance.
Researchers found that African killifish can mature and reproduce in as little as two weeks, setting a new record for the fastest maturation rate in vertebrates. The fish's lifespan is also highly flexible, with some individuals reaching sexual maturity in up to 10 weeks.
A recent study found that nearly half of individuals with type 2 diabetes achieved remission after a weight-loss intervention. The research suggests that substantial weight loss at diagnosis can rescue beta cells and reverse the condition. However, only those who experienced early and sustained improvement in beta-cell function were ab...
Researchers found that fairy-wrens can learn to associate unfamiliar alarm calls with danger by listening to a chorus of familiar calls. This social learning allows birds to quickly adapt to new environments and may be relevant to conservation efforts.
Researchers analyzed genetic data from diverse humans and Neanderthals, finding no evidence for recent, human-specific selection of FOXP2. The study revises the history of how humans acquired language, highlighting the importance of using diverse datasets in population genetics.
A study found that blind people need additional timing cues to accurately judge sound locations, unlike sighted individuals. Blind participants performed better with proportional delays, while uniform delays impaired their judgement.
Researchers found that the left hemisphere of the boy's brain compensated for visual tasks, but he couldn't see the left half of the world. Despite losing parts of his visual system, UD performed normally on pattern perception and had age-appropriate intellect and language skills.
Researchers found that microbes from diverse travelers mix throughout the day, forming a uniform microbiome by evening. The study suggests that urban planning can impact bacterial types encountered, guiding public health strategies and transit designs.
Researchers mapped global marine wilderness, finding only 13% of the world's ocean can still be classified as wilderness. The remaining areas are mostly located in remote regions, such as Arctic and Pacific Island nations, while coastal regions have almost no wilderness left. Protecting what remains is crucial to preserve biodiversity.
Researchers found that land sparing, combining high-yield agriculture with preserving natural habitats, stores greater amounts of carbon than other systems. Lower-yield farming practices consistently held more carbon than high-yield farms due to increased area requirements.