A new fossil analysis reveals that Vintana sertich was a badger-sized, herbivorous animal with keen senses of smell and vision. The study sheds light on the diversity of Mesozoic mammals and their paleoecology.
The global spread of asbestos is a pressing concern, with over 50 countries banning the substance due to its deadly health risks. India and the US remain among the largest producers and importers of asbestos, contributing to the ongoing challenge to global health.
Whole-organism performance capacities are subject to life-history trade-offs with other key determinants of fitness. This approach offers significant promise for understanding ecology and evolution of performance traits.
Researchers created a three-dimensional model of a single neuron to study its electrical properties. The study found that changes in cell morphology affect hyper-excitability, highlighting a new relationship between cellular dysfunction and structural integrity.
Researchers have found that temperature-controlled aggregation in new semi-conducting polymers enables high-efficiency organic solar cells with efficiencies up to 10.8%, paving the way for mass production and a commercially viable alternative source of energy.
A single mutation in the beta-catenin gene can lead to abnormalities in sexual organ morphology, making natural reproduction impossible. The study found that this mutation affects specific tissues, causing malformations that prevent successful reproduction.
The Catoca diamond mine in Angola revealed 118 million-year-old dinosaur and crocodile tracks, with the largest mammalian track attributed to a raccoon-sized animal. No fossil bones or teeth of such an animal have been found elsewhere in Africa or the world.
A group of ferns in the Andean páramo ecosystem evolved highly modified leaves to cope with extreme environmental fluctuations, retaining furled fronds and increasing leaflet pairs up to 300 per frond. The rate of biological species arising is significantly higher among these páramo ferns compared to non-páramo species.
Researchers from the University of Southampton have discovered that feather shafts exhibit varying layer thickness and orientation according to flight style. This finding challenges previous assumptions about feather morphology and opens doors for innovative engineering applications.
A team of researchers has developed a novel catalyst for oxygen reduction in hydrogen fuel cells, which is more efficient and cost-effective than traditional platinum-based catalysts. The catalyst was synthesized using an ordinary kitchen microwave oven, paving the way for sustainable energy production.
A plant scientist has applied morphometric analysis to violin design, revealing parallels between leaf shapes and instrument design. The study found that specific shape attributes differentiate instruments and correlate with historical time, demonstrating the influence of history, imitation, and genetics on violin evolution.
A research team led by Alejandro Briseno has developed a new polymer architecture that mimics the structure of blades of grass to improve the efficiency of organic solar cells. The breakthrough solves a major problem with energy transfer and has widespread applications for solar cells, batteries, and transistors.
Researchers discovered a simple scaling law that describes how the speed of an organism changes with its size, movement speed, and other factors. The study found that all animals, from tiny fish larvae to massive whales, can be described by one of two equations, indicating general principles at work.
The study found that the non-dominant hand played a vital role in shaping modern human hand morphology, particularly in stone tool production. The researchers discovered that the thumb on the non-dominant hand was stronger and more robust than the fingers, enabling early humans to securely manipulate stone cores.
The special issue of Applications in Plant Sciences explores bioinformatic methods to analyze plant morphology. Researchers successfully applied automated classification and identification techniques, geometric morphometrics, and skeleton networks to examine plant form.
A new species of carnivorous crustacean, Thylacares brandonesis, has been identified from a 435 million-year-old fossil found in Wisconsin. The creature used long, claw-like appendages to catch prey, similar to modern remipedes.
The San Antonio Life Sciences Institute has awarded over $750,000 in grants to researchers studying the intersection of immunity, microorganisms, and cancer. These collaborations aim to address public health issues and diseases with global impact, such as diabetes and cancer.
Researchers used 3D models of the woodpecker to understand its anti-shock biomechanical structure, which stores most impact energy in the body and reduces it in the head. This study could provide guidance for designing anti-shock devices and structures for humans.
African parasites undergo significant shape changes during their life cycle, enabling adaptation to varying environments. Researchers found that adjusting a key protein's expression can trigger these transformations, allowing the parasites to survive and reproduce for multiple generations.
Researchers investigated the impact of cellular senescence on adipose-derived stem cell morphology and function. The study found that senescence compromises the clinical application of these cells for peripheral nerve regenerative cell therapy. Senescence modulating factors influence adipose-derived stem cell behavior.
A recent study suggests that adults' more highly developed cognitive skills can actually interfere with their ability to learn certain elements of a second language. This 'effort paradox' is thought to occur when adults try to analyze too much information at once, leading to difficulties in learning the morphology of an artificial lang...
Researchers have observed an ordered water monolayer on various solid surfaces at room temperature, contradicting the classical understanding of water's behavior. This phenomenon exhibits novel properties and affects surface characteristics, such as electrochemical property, wetting behavior, and friction.
Astronomers have spotted an unusual structure in the universe, resembling a corkscrew-shaped string of pearls, that winds around the cores of two colliding galaxies. The discovery has sparked excitement among researchers, who are still trying to understand the physical processes behind this phenomenon.
Researchers found that species with placentas tend to have smaller males with reduced bright colors and courtship displays. This discovery links sexual selection and placenta formation, suggesting that the evolution of complex organs like placentas is influenced by mating strategies.
A team of scientists has identified a master regulatory gene for sex determination in the green alga Volvox carteri, which shows how it evolved from a more primitive mating system in a close relative. The discovery may provide a possible blueprint for the origin of sexes in other multicellular organisms.
Researchers found that 3-n-butylphthalide improved neuronal morphology in the cerebral cortex and hippocampus, reducing oxidative stress caused by chronic cerebral ischemia. The compound also inhibited amyloid beta accumulation and improved cholinergic function in rats with chronic cerebral ischemia.
Researchers from Minzu University of China conducted geometric morphometric analysis on the sides faces of Tu and Zang ethnic groups, revealing distinct variations and common features. The study aimed to contribute to research on Chinese facial profile characteristics and variations.
The modENCODE Project has provided new genomic advances on embryonic development, DNA replication, and transcriptional regulation. Researchers compared developmental gene expression between Drosophila melanogaster and Caenorhabditis elegans, finding conserved gene expression patterns during development, despite significant differences ...
Researchers 'remote-controlled' cancer cell behavior with light, finding that activation can cause changes in morphology, proliferation, and gene expression. This breakthrough applies optogenetics to cancer research, offering a precise method for targeting specific cells.
Researchers have developed a new method to grow zebrafish embryonic stem cells for over 2 years without a feeder cell layer, simplifying their use and expanding their utility. The ability to establish and grow these stem cells enables exciting cellular and molecular genetic manipulations.
A new classification system can predict hunting behaviors of mammals from forelimb bone measurements. The system distinguishes between ambush predators, pursuit predators, and pouncing predators with high accuracy. It was developed based on analysis of 62 specimens of 37 species, including the Thylacine.
Researchers have identified skulls with a mix of Neandertal and primitive traits, providing new insights into human evolution. The findings support the accretion model hypothesis, suggesting that Neandertals developed their defining features in stages, not all at once.
The Societas Europaea Lepidopterologica has joined forces with Pensoft Publishers to bring the journal Nota Lepidopterologica on the way to open access and innovation. The new format brings benefits such as shorter waiting times for publication, and all published papers will be accessible online.
Researchers found a high-volume perennial spring on Ellesmere Island that flows year-round despite extreme cold temperatures. The spring's unique geochemistry suggests a more active hydrogeological system in polar regions than previously thought, potentially driven by glacial meltwater.
Researchers found biological tissues exhibit optimal shape at finite time before decreasing, approaching a disk or sphere for large tissues. The study models cell alignment and forces to explain tissue elongation.
A Northwestern University team has developed a new understanding of plastics for battery applications by combining two traditional theories in materials science. This opens the door for a new class of batteries with improved safety and power efficiency. The researchers used block copolymers, which are self-assembling into nanostructure...
Transplanted dopamine neurons from fetal tissue remain healthy for at least 14 years after transplantation, according to a recent study. The findings suggest that stem cells can be a viable source for transplant-ready dopamine neurons, providing further rationale for pursuing this therapeutic approach.
A large-scale study found that cannabis use can negatively impact sperm morphology, with nearly twice the likelihood of abnormal sperm in summer months or among younger men. Lifestyle factors such as smoking and alcohol consumption showed little correlation with poor sperm quality.
Researchers investigated two successive three-ribbon solar flares using high-resolution data, revealing a 'fish-bone-like' morphology and surge-like flows. The study suggests magnetic reconnection along the coronal null line is involved in producing the flares and associated coronal mass ejections.
The journal, one of the world's oldest entomology journals, adopts a new open access format to increase visibility and dissemination of research papers. This innovation allows authors to freely share their work, promoting increased citation rates and collaboration opportunities.
Female bark scorpions exhibit poor sprinting ability but rapidly sting in response to simulated threats. In contrast, male scorpions have superior sprinting ability and longer legs.
A recent study by evolutionary biologists at the University of Massachusetts Amherst shows that a mutation in a single gene during development can lead to different consequences, including changes in jaw shape and feeding strategies. This genetic variation predicts differences in feeding mechanics and alters skull structure.
Researchers mapped the epic evolution of a 'ring species' using genomic analysis, revealing complex divergence and hybridization. The Greenish Warbler's range expansion involved periods of geographic separation and interbreeding.
Researchers develop protocol combining hard X-ray tomography and histology to visualize constricted vessels, enabling simulation of blood flow and targeted drug delivery. The method also characterizes soft tissues in the vicinity of calcified arteries with high precision.
A new UCSB study shows that the protein E-cadherin promotes collective cell migration by guiding cells to move and migrate. The researchers used innovative experimental tools to measure forces on E-cadherin molecules, revealing a non-perturbing approach to understanding tissue morphology.
A new study by the University of Adelaide's Australian Centre for Ancient DNA has solved a 150-year-old evolutionary mystery about the origins of giant flightless birds. The research found that the kiwi is most closely related to the extinct Madagascan elephant bird, contrary to previous claims.
Scientists discover new golden bass species from deep waters off Curaçao, shedding light on Caribbean reef biodiversity. The newly described Liopropoma santi is characterized by its predominantly yellow body and fins.
Researchers have published a study providing complete open access to detailed 3-D images of earthworms, enabling the analysis of rare museum specimens. The study uses micro-computed tomography (microCT) to digitize worm structures, opening possibilities for scanning millions of specimens from museum collections.
The University of New Mexico's Department of Earth and Planetary Sciences has determined the age of Naia, a well-preserved human skeleton found in the Yucatan Peninsula. The analysis reveals that Naia was a Paleoamerican with Native American DNA, linking ancestral Americans to modern Native Americans.
Researchers have identified a new order of marine creatures among sea anemones, revealing a giant species that is actually an imposter. The study, published in PLOS ONE, presents the first tree of life for sea anemones and reshapes scientists' understanding of these poorly understood animals.
A new study re-describes the oldest species of dolphin, Eodelphis kabatensis, shedding light on their origins and evolution. The discovery resolves a discrepancy between fossil records and molecular-based studies, providing crucial insights into the evolutionary history of dolphins.
Scientists at AIMR successfully synthesized three-dimensional (3D) nanoporous graphene with preserved two-dimensional Dirac electronic characters. The material exhibits exceptional electron mobility and a massless Dirac cone system, making it an attractive alternative to silicon-based devices.
Asteroid and comet impacts can preserve the signatures of ancient life in Earthly impact debris. Researchers found fragments of leaves and preserved organic compounds in ancient impact glasses from Argentina, which could provide a snapshot of environmental conditions at the time of those impacts.
A new orchid species, Lophiaris silverarum, has been named after UC Riverside researcher Katia Silvera. The species was discovered in central Panama and is currently growing only in that region. Its slow growth rate makes it rare and difficult to cultivate.
Researchers have discovered that intestinal cells use adhesion molecules to build the nutrient-absorbing brush border, a critical structure for absorbing nutrients and defending against pathogens. The findings provide new insights into intestinal pathologies associated with inherited and infectious diseases.
Researchers discovered an ancestor of modern crustaceans with a sophisticated cardiovascular system, including a heart and blood vessels. The finding sheds light on the evolution of body organization in the animal kingdom and suggests that even ancient creatures had internal systems similar to those found in their modern descendants.
A new species of horseshoe worm, Phoronis emigi, has been discovered in Japan after a 62-year gap, shedding light on the global diversity of the Phoronida phylum. The discovery is significant as it highlights the need for further investigations to reveal additional species.
Researchers developed a nanoscale matrix biomaterial assembly that maintains liver cell morphology and function in microfluidic devices. The technology enables the creation of stable liver microtissues for use in organ-on-a-chip devices to mimic healthy liver physiology and test drug toxicity.
A team of researchers demonstrates new algorithmic technologies for parametric representation of human shape and form, enabling tracking of soft-tissue deformations in various medical conditions. The software algorithms provide tools for synchronizing structural and functional information across anatomical scales.
Researchers in China have developed a convenient way to selectively prepare germanium sulfide nanostructures, including nanosheets and nanowires. These nanostructures show outstanding photoresponsive behavior, indicating their potential use in solar energy conversion systems and optoelectronics.