Articles tagged with Morphology
A review of research on repeated weight loss and regain suggests that yo-yo dieting is not necessarily as harmful as often portrayed. The benefits of weight loss can outweigh the potential risks of later weight regain, with several large studies showing that obesity itself is a primary driver of metabolic disease risk.
Researchers from UNICAMP and USP describe three new species of moths in the Eois genus, named after Orixás from Candomblé and Umbanda traditions. The study improves understanding of Lepidoptera diversity in Brazil and ecological interactions with Piper plants.
Tapendra Sodari, a UT Arlington physics Ph.D. student, has been awarded a $50,000 annually NASA fellowship to study the Equatorial Ionization Anomaly in Earth's upper atmosphere. His research aims to improve space weather prediction and protect critical technologies.
Researchers tracing the journey of Phytophthora infestans, a plant destroyer behind Ireland's Irish Potato Famine, explore its taxonomy and identification from early microscopy to genomic technologies. Advances in science strengthen efforts to monitor and manage destructive plant diseases.
Researchers found that fish lineages adapted to scrape algae and shellfish from hard surfaces evolved in more diverse ways than those living in open water. Coral reef fish are thought to have benefited from this adaptation, driving the acceleration of diversification.
Research finds that the rounded shape of natural tips is due to random mechanical wear, not just evolutionary optimization. The experiment with pencils demonstrates how collisions can lead to a universal parabolic shape across different structures.
Researchers have uncovered a gene responsible for the unusual patterning in Snowflake clownfish, which has provided key clues toward solving the mystery of biological organization. The study suggests that a universal framework for studying pattern formation across species exists.
Researchers at UMD used AI and 3D imaging to accelerate the scanning and creation of 2,000 interactive ant models, reducing scanning time from 10 hours to a single week. The project, dubbed Antscan, aims to create a living library of interactive models corresponding to Earth's biodiversity.
A new database of 3D ant models, Antscan, provides high-resolution micro-CT scans of 800 different ant species, revolutionizing the study of organismal shape and form. The database facilitates large-scale digitization of small organisms, enabling scientists to better model ant movement and study locomotion.
Researchers analyzed downward climbing behaviors in 21 small-to-medium-sized arboreal mammal species to understand early primate evolution. They found primates used tail-first and side postures more often than non-primates, suggesting upright postures evolved to adapt to tree environments.
Researchers discovered functional gradients in elephant and cat whiskers, allowing for precise touch sensing. The stiff-to-soft transition enables elephants to navigate their environment with ease, including picking up delicate objects.
Research shows that ants with less protective armor, such as cuticle investment, tend to have larger colony sizes and are more successful in terms of diversification rates. This suggests that complex societies like humans may evolve by sacrificing individual quality for collective power.
Researchers at Penn State develop high-speed platform to produce synthetic brochosomes, complex nanostructures that make insects invisible to predators. The breakthrough enables next-gen camouflage, sensors and other advancements for humans.
The VTA method creates an optimal internal architecture within photovoltaic material, resulting in devices with high performance and extended stability. Champion cells reached 20.5% power conversion efficiency and demonstrated improved structural organization and reduced degradation.
Researchers found that male green hermit hummingbirds' bills are straighter (3%) and sharper (69%) than females', allowing for more efficient energy expenditure and stress resistance during fights. These differences were driven by the birds' tendency to fight for mates, rather than solely by ecological factors.
Research found that deep-sea pelagic fish exhibit a wider range of body types, while benthic species tend towards elongated, tapered shapes. The study suggests that ocean depth and environmental conditions drive evolutionary changes in fish body shape.
Researchers have identified and classified 100 biological tilings across various taxonomic groups, providing insights into their functions and dominance. These findings could lead to novel manufacturing design challenges and bio-inspired innovations.
A recent study published in Integrative and Comparative Biology found that bonnethead sharks' skin undergoes significant changes as they mature, with younger sharks having fewer ridges on their denticles. These changes likely improve swimming performance and protect the skin from predators or injuries.
A study finds that women runners prioritize comfort, injury prevention, and performance when choosing running shoes, highlighting a need for sex- and gender-specific designs that accommodate female foot morphology across the lifespan. The researchers recommend moving beyond scaling down men's shoes to fit women's feet.
Researchers found that smaller insect wing design, rather than flapping speed, enables them to generate lift and fly. The study showed proportionally longer wings and more force-efficient shape help the smallest species stay airborne.
A new study by Florida Atlantic University researchers found that heat does not significantly affect the cognitive ability of sea turtle hatchlings. However, higher incubation temperatures negatively impact their physical traits, including shorter incubation durations, lower hatching success, and more frequent scute anomalies. The stud...
Researchers tested a popular evolutionary theory by comparing maternal length and fetal sex in over 100,000 whales. They found that the fetal sex ratio skews female for longer body size, suggesting that female calves benefit more from heritable fitness than males do. The findings contradict the Trivers-Willard hypothesis.
Researchers at Pohang University of Science & Technology have successfully synthesized Prussian Blue with an octahedral morphology by using a specialized solvent. The new crystal shape enhances electrochemical reactivity and stable performance in sodium-ion hybrid capacitors.
A study found that most rodents have thumbnails instead of claws, which helps explain how they thrived in various environments. This discovery suggests that thumbnails provide more manual dexterity than long, sharp claws, enabling rodents to exploit high-energy resources like nuts.
Researchers have discovered forehead teeth on spotted ratfish, which are used for mating and challenge traditional conceptions of dental history. The findings provide evidence that these unusual structures are indeed teeth, not denticles, and shed light on the evolution of oral teeth.
Researchers found that sharks' teeth become structurally weaker and more prone to break in acidic oceans. The study suggests that even small damage can have significant effects on these apex predators.
A study of Olenoides serratus trilobite limbs reveals a simpler, functional design than horseshoe crabs, with specialized appendages for walking, burrowing, and mating. The research provides new insights into the behavior and movement of ancient arthropods, offering a rare window into life over half a billion years ago.
Researchers mapped the range of movement in Olenoides serratus trilobite limbs, shedding light on their behavior and function. The study revealed a simpler, functional limb design with limited extension range, allowing them to walk, burrow, and forage.
Early primates transitioned to grass-based diets without typical adaptations, with changes in dental morphology lagging behavioral shifts by 700,000 years. This supports the concept of behavioral drive in primate evolution, suggesting that behavior can precede and initiate morphological specialization.
Four new tarantula species have been discovered in the Arabian Peninsula and Horn of Africa, featuring extraordinary long palps on males to aid in mating. The genus Satyrex boasts a range of distinct characteristics, including bright coloration and fossorial habits.
Research warns that GLP-1 drugs may not provide the long-term health benefit of improved heart and lung function. While they help with weight loss, patients may experience significant muscle loss, which can increase cardiovascular disease risk. Doctors are urging additional research to better understand the effects of these drugs.
Researchers from Empa's Soft Kinetic group studied the rare scaly-tailed squirrels' unique bodily structure, discovering that their thorn-covered scales help them maintain position and grip onto tree bark. The study aims to inform robotics by adopting morphological structures and behaviors honed through millions of years of evolution.
A novel 3D modeling method accurately quantifies the shading potential of over 800 microalgal species, affecting underwater light conditions and ecosystem balance. The study provides a comprehensive Projected Area Database for freshwater microalgae, enabling researchers to estimate the ecological impact of algal blooms.
A high-fat diet leads to metabolic enzyme dysregulation, insulin resistance, and accumulation of reactive oxygen species in cells. Reversing these effects with antioxidants can mitigate damage.
A team of palaeontologists from Fundación Dinópolis has discovered a partial stegosaurian skull in Spain, revealing previously unknown aspects of the species' anatomy. The find has led to the proposal of a new evolutionary hypothesis and the definition of a new group called Neostegosauria.
Researchers discovered a novel mode of contact between somatic and germ cells in the ovaries of two arthropod species, challenging the general understanding of epithelial layer function. The basement membrane, typically a barrier, is penetrated by follicle cells to establish direct contact with oocytes.
Researchers created first complete genetic activity map of a branching worm, revealing how it controls reproduction across its multiple body branches. The study highlights the unique genetic toolkit and challenges understanding of animal bodies' organization.
Preliminary research suggests that long working hours can induce neuroadaptive changes in the brain, particularly in areas associated with emotional regulation and executive function. The study found increased brain volumes in regions such as the middle frontal gyrus, which is involved in attention and problem-solving.
A team of scientists has discovered a new species of snail, Anauchen picasso, named after artist Pablo Picasso. The unique shell shape and features make it stand out from other snails.
The Libroscope initiative seeks to unlock and link data from scientific literature to support understanding of biodiversity. By 2035, the power of biodiversity knowledge will be fully leveraged within an open science framework.
Researchers found highly efficient imaging systems in ancient insect larvae, comparable to modern antlions. The discovery supports earlier findings on the diversity of Cretaceous lacewings and provides the oldest fossil evidence of such eyes.
A new study found that Neanderthals experienced a drastic loss of genetic variation approximately 110,000 years ago, leading to their eventual extinction. The research measured the morphological diversity in semicircular canals, which revealed lower diversity in classic Neanderthals compared to pre-Neanderthals and early Neanderthals.
A new study by Nicholas Hebdon and Lindsay Waldrop found substantial overlap in skull shapes across dog breeds and functional categories, challenging the prevailing belief that certain breeds are inherently superior at specific tasks. The researchers discovered no clear evidence of morphological specialization for bite work or scent work.
Research published in the European Heart Journal found that people with high amounts of intermuscular fat are more likely to develop coronary microvascular dysfunction and future serious heart disease. The study's lead author suggests that existing measures of obesity may not be accurate for all individuals, particularly women.
Researchers compiled a reference framework of isotope compositions indicating the type of diet for extant reptiles, providing a useful dataset to reconstruct the diet of fossil reptiles. The analysis showed that calcium isotope ratios are higher in insectivorous reptiles and lower in herbivores and carnivores.
Researchers at OIST have developed a customizable method for studying detailed dental characteristics of living fish and vertebrates without harming them. This approach allows for non-destructive examination of tooth replacement and development over time, revealing valuable information on feeding habits and comparative anatomy.
Researchers develop novel Ta-based implants with improved biocompatibility and osseointegration properties, enabling better bone growth and stability. The designs optimize mechanical and biological requirements for optimal clinical results.
Brachycephalus dacnis is the seventh species of flea toad identified in the genus Brachycephalus. The study published by a group at the State University of Campinas provides detailed information about its anatomy, skeleton, and internal organs.
Researchers confirm 15 new species in Characidium genus, including genetic distance smaller than 2% between species with significant morphological differences. The study highlights the need for reevaluation of species classification and evolutionary history.
A new robust classification system for termites has been developed through expert consensus and extensive data analyses. The updated 'dictionary' of termites resolves ambiguity in the previous system, providing a solid platform for studying termite diversification and ecosystem roles.
Researchers investigated the interaction and genetic introgression between two closely related spider mite species in Japan's mountains. The study found extensive overlapping distribution, hybrids, and genetic introgression, shedding light on speciation in haplodiploid organisms.
Researchers have challenged the conventional view of myriapod ovarian morphology by discovering structural specialization in pill-millipede Hyleoglomeris japonica. The follicle epithelium, previously considered a homogenous structure, exhibits two distinct regions with enhanced and reduced metabolic activities.
A new Japanese lily species, Lilium pacificum, has been identified after 110 years, revising the conventional classification into eight taxons. The plant has unique characteristics and is adapted to specific environments in Japan, offering clues for speciation studies.
The Komodo Dragon's teeth develop and replace rapidly, with up to five replacement teeth per position in its jaws. This allows it to quickly respond to prey capture or injury, making it an ideal model for studying theropod dinosaur life history and feeding strategies.
A new study by Concordia researchers found a strong positive relationship between percentage body fat and echo intensity, indicating more fat within the muscle. The study also revealed differences in lumbar multifidus characteristics between male and female athletes, with females having larger LMs than males.
Researchers discovered ancient bird-like footprints in Southern Africa that date back over 210 million years, 60 million years before the earliest known bird fossil. The tracks were found at multiple sites and show a mix of dinosaur and bird-like characteristics.
A new study has found that different gross subtypes of hepatocellular carcinoma (HCC) have significantly different prognoses and molecular characteristics. The study suggests that gross classification may be valuable for developing individualized diagnosis and treatment strategies for HCC, with potential implications for patient outcomes.
Researchers discovered six new species of rove beetles with unique genital shapes, including a bottle-opener like structure in one species. Climate change threatens the survival of these species due to habitat changes.
Research by Hokkaido University's Masayo Soma found that Java sparrows show increased swelling in their eye rings when paired with a preferred mate. This change serves as a rapid indicator of mating readiness and plays a crucial role in communication between pair-bonded birds.