A study by 23andMe identified seven single-nucleotide polymorphisms (SNPs) associated with breast size, including three linked to breast cancer. The analysis controlled for age, ancestry, and other factors, providing insight into the genetic factors underlying normal breast development.
Researchers discovered that lizards swing their tails to rotate their bodies while falling, and replicated this motion in a robot. The study could help engineers design more stable robots for complex environments.
Research team studied genetic diversity of coelacanths in Africa, revealing low genetic diversity but specific patterns in certain regions. The study shows that coelacanths can continue to develop and adapt to new conditions despite their slow evolutionary rate.
Scientists at the University of Illinois have developed new microscopy techniques to analyze pollen grains, enabling better classification of prehistoric flora. The research highlights the importance of pollen morphology in understanding the evolution and diversity of ancient vegetation.
Research suggests that herbivores may have driven the evolution of unique inflorescence architecture in Babiana ringens, a South African plant. The plant's ground-level flowers are protected from herbivores, while apical flowers are eaten, leading to higher reproductive success.
A 345-million-year-old eel fossil, Tarrasius problematicus, has been found with a human-like spine, contradicting the long-held assumption that such complex anatomy is exclusive to land-dwelling animals. This discovery sheds light on the evolution of spinal organization in fish species.
Researchers at Max Planck Institute discover von Economo neurons in macaque monkeys, suggesting a primitive form of self-awareness. The finding opens new avenues for studying brain regions involved in human self-awareness and mental disorders like autism.
The European Society of Cardiology has released new guidelines for the diagnosis and treatment of heart failure, emphasizing the importance of new device recommendations and increased use of left ventricular assist devices. The guidelines also highlight the benefits of cardiac resynchronisation therapy in patients with mild symptoms.
Researchers developed a novel system for 3D reconstruction and examination of tissues at microscopic resolution, enhancing the study of normal and disease processes. The new approach uses conventional histopathological methods and can be used by technical or medical staff without input from computing specialists.
Scientists have discovered rules that relate genes to a neuron's electrical properties and shape, increasing the likelihood of predicting brain structure and function without measuring every aspect. This breakthrough increases the feasibility of modeling the brain in silico and ushering in a new era of predictive biology.
A new study has found that sublethal concentrations of Roundup can alter the morphology of amphibian tadpoles, causing them to change shape in ways that mimic predator-induced changes. This is the first study to show a pesticide inducing morphological changes in a vertebrate animal.
Researchers have successfully diagnosed a new species of plant using DNA barcoding, a method that relies on short DNA sequences for identification. The study marks a significant shift towards English-language diagnoses, which will enable scientists to more easily share and verify findings.
A new £2.9m project aims to forecast the future of the UK's coastline up to 100 years, addressing flooding and erosion risks.
Researchers at Berkeley Lab have provided the first experimental determination of the pathways by which electrical charge is transported in organic thin films. By chemically modifying these films, they show improved conductance and pave the way for future organic electronic devices with better performance.
Researchers have found the oldest organism with a skeleton, Coronacollina acula, which lived between 560-550 million years ago. The discovery provides insight into early life on Earth and may help scientists recognize life elsewhere in the universe.
Scientists discovered 13,435- to 13,738-year-old marks on a Jefferson's Ground Sloth femur, indicating prehistoric humans hunted or scavenged the animal. The findings are the oldest evidence of human activity in Ohio and provide new insights into the lives of prehistoric Ohioans.
A study published in PNAS refutes the long-held hypothesis that organelle transport deficits cause axon degeneration in ALS. Instead, reduction and initiation appear to occur through different mechanisms, making axonal organelle transport an unsuitable therapeutic target.
Research proposes that parasite evolution plays a key role in host sex-biased parasitism and disease expression. Characteristics like morphology and behavior differ between sexes, posing unique challenges for parasites, which may adapt more to one sex than the other.
A University of Alberta paleontologist has discovered that Tyrannosaurus rex had the greatest variation in tooth morphology or structure among all tyrannosaurids. The varying edges enabled strong teeth to cut through flesh and bone, while the placement and angle directed food into its mouth.
Researchers have discovered a new species of turtle, Polysternon isonae, that lived with dinosaurs in Isona, Spain. The fossil remains found are rare and provide valuable information about the morphology and size of the animal.
The newly discovered Antispila oinophylla species, originating from eastern North America, is found to infest Italian vineyards, particularly on Chardonnay, Cabernet Sauvignon, and Muscat grapes. The leafminer's life cycle and distribution have been studied in detail, highlighting the potential economic impact of this invasive species.
Researchers develop new forensic identification technique that compares skull with pictures of living subjects to identify corpses, reducing cost and time compared to DNA analysis. The study refines reference points for face morphology analysis, enhancing accuracy and reliability.
A team of astronomers has captured stunning images of a nearby dwarf galaxy undergoing a 'stealth merger' with its host. The resulting stellar stream is visible in the outer regions of NGC 4449, providing insights into galaxy formation and evolution.
Researchers at Berkeley Lab developed a technique for inducing nanorods to self-assemble into complex one-, two- and three-dimensional macroscopic structures. The technique uses block copolymers as a platform for guiding the self-assembly of nanorods, enabling more effective use in solar cells, magnetic storage devices and sensors.
Conservation researchers at San Diego Zoo Global's Institute of Conservation Research have developed a low-cost, molecular tool for identifying two-toed sloth species. The technique uses a mitochondrial marker and restriction enzyme assay to distinguish between closely related species.
A team of scientists discovered a sauropod dinosaur remains in Antarctica, suggesting the species may have been more widespread than previously thought. The finding improves our knowledge of the dinosaurian faunas during the Late Cretaceous period on this continent.
A study published in Nature Communications reveals that modern humans have a more developed sense of smell compared to Neanderthals, with larger olfactory bulbs and temporal lobes. This could be linked to improved behavioral and social functions.
Research led by John Scannella confirms that Triceratops is a single genus, resolving debate over the classification of Torosaurus and Nedoceratops. The study reveals that significant skeletal changes during development and natural variation within the genus cause specimens to exhibit varying features.
Researchers from RUB have deciphered the role of proteins in cell environment, revealing tenascin C's crucial function in regulating astrocyte development. The absence of tenascin C leads to delayed cell division and migration, resulting in an increased number of mature astrocytes.
The Biophysical Society has announced the winners of its Minority Affairs Committee travel awards, which support participation at the Annual Meeting by minority students and early career scientists. The recipients include 12 researchers from diverse backgrounds who will present their research in San Diego.
A recent genetic study confirms that the wolf ancestors of modern dogs came from southern East Asia, contradicting theories placing their origins in the Middle East. The research, led by Dr. Peter Savolainen, analyzed Y-chromosomal DNA and found strong evidence supporting an Asian origin for dog domestication.
Researchers in Italy have compiled a comprehensive summary of the country's native conehead insect species, Protura. They identified 40 species, including six new records for the Italian fauna, shedding light on their ecological role in organic matter degradation and nutrient recycling.
Dr. Richard A. McIndoe is leading a $7.5 million National Institute of Diabetes and Digestive and Kidney Diseases grant to support studies on diabetes affecting 8.3% of Americans. The Diabetic Complications Consortium shares data on complications like heart attack, stroke, vision loss, and kidney damage.
Cardiovascular Magnetic Resonance (CMR) has become a critical diagnostic tool in clinical cardiology, providing comprehensive assessments of ventricular function, cardiac morphology, perfusion, viability, and metabolism. CMR offers significant advantages over other imaging modalities, including the absence of ionizing radiation and hig...
Paleontologist Guillermo Rougier and his team have reported the discovery of two skulls from the first known mammal of the early Late Cretaceous period in South America. The fossils provide a complete picture of the skull for the group, including extremely long canine teeth and a narrow muzzle.
A study published in PLOS ONE reveals that big cats' square-shaped vocal cords allow for louder roars at lower lung pressure, making it easier for the tissue to respond to airflow. This discovery contradicts a long-held theory and could potentially help doctors reconstruct damaged vocal fold tissue.
A recent study published in PNAS reveals that people in East Asia carry genetic material from Denisovans, a previously unknown archaic human relative. This finding suggests that gene flow between humans and Denisovans occurred on the Asian mainland, contradicting previous theories about hybridization events.
A recent study revealed that three European parasitoid wasp 'species' are actually seasonal forms of a single species. The researchers used museum collections and targeted fieldwork to confirm the findings, which were further supported by DNA sequence data.
Researchers at Georgia Tech discover that genomic gaps in human and chimp genes are caused by viral-like sequences, leading to differences in gene expression and morphology. The study suggests that 'junk DNA' may hold the key to understanding why humans differ from chimps.
Researchers using new high-tech tools are rethinking early hominid diets, finding grasses and sedges as a primary food source for some species. This discovery forces anthropologists to reassess their understanding of ancient human ancestors.
A study by MIT researchers found that bees and similar nectar feeders are most efficient when feeding on more sugary, or viscous, nectar, while suction feeders prefer less sugary nectar. This suggests a correlation between the morphology of flowers and their pollinators.
Neuroscientists at the University of Leicester discovered a protein called lipocalin-2 that helps regulate dendritic spine formation and maturation, reducing future anxiety associated with stressful events. The study found that mice without this protein were more anxious and had stronger memories of stressful events.
Perennial crops retain significant genetic variation, closer to their wild counterparts than annuals. Long-lived species have fewer sexual cycles due to clonal propagation, resulting in lower genetic change.
The study reveals that neurons normalize receiving signals by adjusting their morphological characteristics, making it easier to receive farther signals. The research team's 3D image reconstruction of minute dendritic tree morphology demonstrates the size and distance of dendritic trees determine signal clarity and strength.
A study published in Science magazine has found significant transitional fossils that support the evolutionary link between Australopiths and Homo. The discovery, led by Texas A&M University researcher Darryl de Ruiter, provides key insights into human development and evolution.
Researchers found a significant correlation between pericardial fat thickness and coronary arterial remodeling in patients with coronary artery disease. Patients with higher pericardial fat thickness were more likely to have non-calcified plaque and positive remodeling, which are related to acute coronary syndrome.
Scientists applied theoretical morphology techniques to study terpenes in plants, discovering a disparity between predicted and actual abundances. They found that nature favors rarer, harder-to-synthesize forms of these chemicals, which could lead to new effective drugs.
A study published in PhytoKeys has sorted out the names of three Australian Cucurbitaceae species collected in 1856, which are distinct from each other and one is closest to the honeymelon. Molecular data link herbarium science with molecular results to resolve economically important group identities.
Researchers discovered a genetic switch controlling limb development in ancient fish, suggesting that the recipe for limb development is conserved across species. The discovery challenges previous findings and provides new insights into the evolution of limbs in tetrapods.
Researchers have identified a single nucleotide change that underlies variation in fruit morphology across different plant species, including Brassica and rice. This discovery suggests that evolutionary development may offer insights into plant breeding.
Researchers have discovered that subtle genetic changes can significantly impact an organism's size and shape. The study, led by David Stern at Princeton University, found that five specific genetic changes contribute to the evolution of distinct morphologies in fruit flies. These findings provide insight into how individual mutations ...
The European Society of Cardiology recommends redefining cardiac hypertrophy as myocardial remodelling to account for changes in non-myocyte cells and cell division. This change aims to improve communication among researchers and clinicians, leading to better risk stratification and treatment.
Researchers discovered two distinct populations of coconuts, indicating separate cultivation origins in the Pacific and Indian Ocean basins. The study also found evidence of prehistoric trade routes and the colonization of the Americas through coconut genetics.
Researchers explore potential causes of widespread gullying on the southeastern Tibetan Plateau, find evidence of late Quaternary development in river valleys of the Karakoram Himalaya range. Paleovalley morphology studies reveal insights into climate and tectonic controls on sedimentation.
Children with enlarged tonsils and adenoids who wore an oral appliance for six months experienced favorable craniofacial growth, increased pharyngeal dimensions, and improved breathing and snoring during sleep. The treatment also normalized respiratory function and sleep quality, reducing the incidence of obstructive sleep apnea.
A recent brain imaging study suggests that men with a history of violent behavior may have greater gray matter volume in certain brain areas, whereas those with substance use disorders may have reduced volume in other areas. The study found associations between increased gray matter volume and higher scores for psychopathy and lifelong...
A Spanish research team used 3D reflection seismology to create detailed images of the Ebro river basin six million years ago. The study reveals that the sea level dropped dramatically during this period, exposing continental margins to atmospheric agents.
Researchers found that females preferred to disperse from their natal groups, similar to chimpanzees and human groups. The study suggests early hominins' social structure was not like that of gorillas.
A recent study published in the American Journal of Human Genetics reveals that mutations in a single gene, centrosomal NDE1, may have played a key role in shaping the human cerebral cortex. The research found that these genetic variations were responsible for microcephaly, a condition characterized by abnormally small brains.
Researchers at Concordia University have developed a novel algorithm to detect epileptic seizures in real-time, analyzing EEG recordings of patients' brains. The new method has been shown to be highly accurate, detecting every seizure while scoring extremely low false positives rates, and may have applications beyond epilepsy.