A recent study published in Proceedings of the Royal Society B discovered that sex-changing fish can rapidly assert dominance after a change in social hierarchy. In this species, known as the New Zealand spotty or paketi, dominant behavior emerges within minutes of removing the current dominant fish.
The American Association for Anatomy has awarded over $238,000 to nearly 200 individuals through various awards and scholarship programs. The organization recognizes outstanding achievements in research, education, and professional development, supporting career advancement and further education opportunities.
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.
A new study reveals that harriers have independently evolved owl-like traits in their ear and brain anatomy, allowing them to locate prey by sound. This discovery provides insights into how birds perceive their surroundings and may contribute to bird conservation efforts.
The breakthrough allows researchers to non-invasively assess BBB permeability using a wide range of radiotracers, enabling early detection of altered permeability and potential markers for neurodegenerative diseases. The scanner can also measure the effects of aging and liver inflammation on BBB health.
Researchers have identified two proteins in birds that compensate for the loss of a key immune component in humans, providing insights into combating respiratory diseases. The study sheds light on how birds maintain lung protection despite their unique respiratory anatomy.
Harvard researchers formally describe the 100-year-old arthropod fossil Helmetia expansa, offering new insights into its anatomy, behavior, and evolutionary relationships. The study reveals that Helmetia likely walked like trilobites and exhibited a unique molting strategy.
A 131-million-year-old pregnant ichthyosaur named Fiona has been studied for her well-preserved skeleton, which provides details about the anatomy of these marine predators. The researchers also found evidence of her final meal and a healed injury in her fin bones.
A study published in GeroScience found that weight training improves memory and brain anatomy in older adults with mild cognitive impairment. The results showed that strength training protected against atrophy in key brain areas associated with Alzheimer's disease.
Researchers developed an AI algorithm to help surgeons position knee components in a way that better matches each patient's natural anatomy. Patients with naturally bowed legs responded well to the 'functionally aligned' knee surgery, reporting better outcomes.
A study analyzing Klimt's The Kiss reveals that the painting's red discs represent vital biological functions and psychological intensity. The research also uncovers historical links between the artist and medical science, suggesting deliberate incorporation of menstrual blood as a central motif.
Researchers developed DeepCeres, a software that uses AI tools to measure 27 structures of the cerebellum with improved precision. This will help in studying neurological pathologies such as ALS, schizophrenia, and Alzheimer's diseases.
A new Concordia-developed app, iSurgARy, uses augmented reality to guide catheter insertion into the brain, improving ventriculostomy safety and accuracy. The app provides spatial awareness of patient anatomy, allowing surgeons to better aim at their target points.
A groundbreaking study led by CUNY researcher Stephen Chester uncovers the anatomy, lifestyle, and evolutionary connections of Mixodectes pungens, a mysterious 62-million-year-old mammal. The discovery reveals the species was close to humans and other primates on the evolutionary tree.
The discovery of a 62-million-year-old Mixodectes skeleton has provided new insights into the anatomy, behavior, diet, and evolutionary relationships of this enigmatic mammal. The study shows that Mixodectes was an arboreal mammal that weighed about 2.9 pounds and primarily ate leaves.
A recent report in The Journal of Craniofacial Surgery highlights the importance of anatomical factors in minimizing risks and optimizing outcomes of facial thread lifting. The report outlines techniques such as reticular cutis gathering and pinching to enhance procedural safety and results.
A new device has been designed to effectively treat cerebral venous sinus thrombosis (CVST) by navigating complex venous anatomy and removing large thrombi. The device features controllable axial and longitudinal maneuverability, improving clinical outcomes for patients with CVST.
Researchers successfully reversed existing inguinal hernias in male mice using an anti-estrogen drug, restoring their anatomy without surgery. Human tissue samples also showed identical molecular markers as in the mouse model, suggesting a promising treatment target for inguinal hernia repair.
Scientists have created a new epigenetic tool that can estimate months of androgen exposure in animals, such as mice and sheep. The Androgen Clock is a linear model that uses specific DNA regions to measure androgen exposure over time.
The Varian Ethos 2.0 system enables precise and adaptive radiation therapy for multiple types of cancer, including prostate, lung, breast, and others. This technology allows for personalized treatment plans to be updated daily to match the changing anatomy of the patient.
The American Association for Anatomy (AAA) has announced the recipients of its 2025 Spring Awards, honoring excellence in various fields of study. The awards include the Henry Gray Scientific Award, A.J. Ladman Exemplary Service Award, and others.
The National Institute of Neurological Disorders and Stroke has awarded researchers at the University of Tennessee Health Science Center $2.18 million to investigate a new small molecule that activates SERCA2, aiming to correct calcium imbalances caused by diabetes after a stroke.
The American Association for Anatomy's Human Body Donation task force has submitted new best practices and standards for human body donation programs in the United States. The guidelines emphasize informed consent, oversight, and dignity in handling donated bodies.
A new report outlines best practices and standards for human body donation programs in the US, emphasizing the importance of informed consent and oversight. The guidelines aim to uphold donor dignity and maintain highest ethical standards.
Researchers have gained a better understanding of mosasaur evolution, relationships, and behaviors through advanced imaging technologies and comparative anatomy. A new study found evidence of cannibalism in mosasaurs and illuminated patterns of foraging area segregation and feeding diversity.
A study at Hospital for Special Surgery found that both robotic-assisted navigation and augmented reality techniques demonstrate superior accuracy in pedicle screw placement, with 99.6% of robotic screws rated as Grade A or B and 92.6% of augmented reality screws achieving the top rating.
Symbiosis has developed an adjustable TMVR system, ValSync, which can adapt to complex anatomies. The company aims to overcome current limitations and improve patient eligibility, safety, and procedure time with its three-step process.
A 15-year study of an ancient ecosystem in Bolivia provides a comprehensive view of the Earth's past, revealing warmer temperatures and lower elevation. The team found fossils of diverse animals and plants, reconstructing the site as a dry forest or wooded savanna with palms and bamboos.
Researchers at Barrow Neurological Institute collected and displayed Vesalius' anatomical manikins for the first time, showcasing their enduring influence on modern anatomic teaching. The display highlights the significance of these works in revolutionizing anatomical education and training.
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 at UC Davis studied the Drosophila uterus and found over 20 cell types, revealing previously invisible anatomy. The study also identified seminal fluid proteins expressed in both male and female flies, which may support viable sperm for long periods.
A new study published in Science Advances provides insights into the complex and nonlinear transition of mammal evolution from sprawled to upright posture. Researchers used cutting-edge methods to analyze fossil data and biomechanical modeling, revealing that locomotor performance peaked and dipped over millions of years.
Researchers are developing energy-efficient robots inspired by ancient fish and fossils to simulate their anatomy and behavior. The team aims to test hypotheses about how early animals evolved and moved, providing insights into the transition from water to land.
Researchers discovered a cache of rare monkey fossils in the Dominican Republic, providing new insights into the anatomy and ecology of the extinct Antillothrix bernensis. The study suggests that male and female monkeys were monomorphic and weighed up to five pounds, with a diet mainly consisting of fruit.
A new microscope-integrated OCT system has been developed to identify tumor margins during brain surgery, providing high-resolution images of subsurface anatomy. The system has shown promising results in clinical studies, with the potential to improve outcomes for neurosurgery procedures.
Researchers have discovered microplastics in all three parts of coral anatomy, including surface mucus, tissue, and skeleton. This finding may explain the 'missing plastic problem' and suggests that corals could be sequestering plastic waste from the ocean.
A new study reveals that a group of highly divergent mammals, including Afrotheria and distantly related, ecologically very similar mammals, independently evolved similar inner ear shapes. This suggests that neutral (non-adaptive) evolution may be more important in shaping inner ear morphology than previously thought.
The Society for Neuroscience recognizes leading researchers whose groundbreaking work has transformed our understanding of pain, addiction, stress, synaptic transport, vision, and sleep. Dr. Allan Basbaum and Dr. Nora Volkow receive the Ralph W. Gerard Prize in Neuroscience for their significant contributions to neuroscience.
A newly discovered species of ancient marine crocodile, Enalioetes schroederi, has provided fresh insight into how metriorhynchids evolved during the Cretaceous Period. The fossil, with a remarkably preserved skull and internal anatomy, shows adaptations to an increasingly marine lifestyle.
An AI model developed by King's College London has produced realistic synthetic images of the human brain, supporting medical research on brain diseases like dementia, stroke, and multiple sclerosis. The high-resolution images accurately reflect clinical factors and can be used to tailor treatment plans for individual patients.
Researchers studied the anatomy of mudskippers to understand their adaptations to life on land. They found that the fish's muscles in the pectoral fins are bigger and that some bone-connecting tendons were replaced by fascia tissue, providing stability and strength for walking.
Researchers found that different nitrogen forms impact leaf anatomy, affecting photosynthesis efficiency. NH4+ nutrition leads to lower photosynthesis due to thicker cell walls and fewer chloroplasts. Optimizing nitrogen form applications can enhance photosynthesis and plant growth, particularly in crops like Lonicera japonica.
A study by University of Bristol scientists reveals that ancient large kangaroo Protemnodon was a poor hopper and likely moved mainly on four legs. The research confirms previous findings on the anatomy of Protemnodon's humerus, showing it habitually put more weight on its forelimbs than modern kangaroos.
Researchers have discovered exceptionally preserved trilobite fossils, over 500 million years old, that provide detailed information about the anatomy and behavior of these ancient creatures. The findings, published in Science, reveal new insights into the evolution of life on Earth.
A new study reports the discovery of exceptionally well-preserved Cambrian-age trilobite fossils from Morocco, providing detailed insights into their anatomy. The fossils' rapid entombment in volcanic ash has preserved both hard exoskeletons and soft tissue appendages with fine details.
Researchers studied newborn baboon brain anatomy to predict future gestural communication handedness, finding that nearly 70% developed a right-hand preference. The study suggests a shared evolutionary heritage and potential clinical implications for brain surgery patients.
Australian researchers have identified a new species of ancient 'echidnapus', which exhibits platypus-like anatomy alongside echidna-like features. The discovery sheds light on the evolutionary history of monotremes, revealing six different egg-laying mammals living together in the same area over 100 million years ago.
The study provides a comprehensive macaque brain atlas, MacBNA, that characterizes profiles of whole-brain regions, including connectivity, anatomy, and geometric topology. This atlas will aid in understanding brain function, development, and evolution, and can be used to transfer information from monkey brains to human brains.
Researchers found that people who watched 'meaningful' films like Grey's Anatomy or Me Before You learned more about death after being asked to think about it beforehand. This suggests a greater acceptance of death as part of life, leading to reduced avoidance behaviors.
Researchers at Weill Cornell Medicine have developed a novel method to create grafts that accurately replicate the human ear's anatomy and biomechanical properties. The new technique uses 3D printing and tissue engineering to produce cartilage-containing structures that mimic the ear's shape, flexibility, and elasticity.
Fossils of pony-sized duckbill dinosaurs in Morocco reveal a new species, Minqaria bata, with anatomy resembling European species. The discovery suggests that duckbills swam or floated across open water to colonize North Africa.
Detailed CT scans reveal the worm-lizard's skull anatomy, including sutured bones and a singular central tooth. Researchers also discovered sexual dimorphism in one species, confirming their findings through powerful jaw muscles.
The American Association for Anatomy announces its 2024 award recipients, recognizing 18 members who advanced the organization's values. The AAA awards program provides over $650,000 in awards annually, with many recipients achieving significant success in their careers.
Researchers at the University of Arkansas System Division of Agriculture have developed a new hybrid technique for creating detailed 3D images of the chicken brain. The method, which combines histochemistry and diceCT imaging, allows for quality images resembling MRI technology at a lower cost.
Researchers examined thresher shark vertebrae and found unique anatomical modifications supporting extreme body bending during tail-whipping behavior. These findings suggest the vertebral column is fortified along its length, enabling the tail to launch over the head.
A team of scientists has identified a previously unrecognized control point in DNA repair processes, which could lead to novel cancer therapies by inhibiting the repair of damaged cancer cells. The newly discovered GSE1-CoREST complex contains three enzymes that control DNA repair and may form the basis for improved cancer treatments.
Scientists at Medical College of Wisconsin create biased agonists that reduce hallucinogenic effects while preserving therapeutic potential. These compounds, designed to selectively activate serotonin receptors, show promise in treating depression and other mental health conditions.
Recent studies by Cara Ocobock and Sarah Lacy found that prehistoric women engaged in hunting, with their female anatomy providing advantages such as endurance and fat metabolism. The research corrects the historical erasure of women from the narrative of human evolution.
A study on rhesus macaques found that spontaneous pelvic organ prolapse (POP) shares similar histological changes with human POP. The research also identified conserved molecular pathways underlying the disease, including ECM dysregulation and immune disorder.
Researchers analyzed 56 mammalian species to study the diversity and evolution of cerebellar folding and its connection to cerebral anatomy. The findings reveal a consistent pattern across species, suggesting a common mechanism underlying brain folding.