A new meningococcal vaccine, MenB-4C (Bexsero), has been shown to cover up to 91% of bacterial strains causing invasive serogroup B meningococcal disease in children and young adults. The vaccine contains four antigens that induce an immune response against the bacteria.
Researchers used brain MRI to identify differences in brain regions among ADHD patients, distinguishing between subtypes with high accuracy. The study suggests that psychoradiology, a field combining imaging analysis and mental health expertise, could improve diagnosis and treatment planning.
Research from the University of Bristol found that patient use of online consultation systems was low, with only two e-consultations per month for every 1,000 patients. The system worked best for simple inquiries, but clinicians preferred face-to-face consultations for complex or new symptoms.
A study published in Ecology Letters found that natural habitats play a vital role in helping species resist heat stresses caused by climate change. For example, mussels and seaweed form habitat for coastal species, providing 'ecological air conditioning' that keeps them cool.
A team of Japanese researchers from Kyoto University used gamma-ray detectors to study the effects of lightning on atmospheric elements. They found that lightning emits positrons, a form of antimatter equivalent to electrons, through interactions with nitrogen and other elements in the atmosphere.
Researchers have discovered that glatiramer acetate, a widely used multiple sclerosis treatment, can also effectively kill certain multi-resistant bacteria. This breakthrough opens up new possibilities for treating cystic fibrosis patients and may even provide insight into the underlying causes of multiple sclerosis.
A UCLA study found that people are being screened for cardiovascular risk factors like diabetes and high blood pressure more frequently since the ACA implemented. However, a disparity was found in aspirin therapy, with men taking daily doses more often than women.
The MSU traineeship program will educate PhD and master's students in accelerator science and engineering, addressing four critical workforce needs. Students will be certified and ready for careers in DOE laboratory facilities and industry.
Researchers developed a computer simulation tool to predict short-term flood hazards on coral reefs and assess longer-term impacts from climate change. A rare 'esker' was discovered on Mars, indicating recent water flows despite cold climates.
Researchers found that bearded dragons incubated in colder temperatures learned to open a sliding door faster than those from warmer temperatures. This ability is crucial for adapting to changing environments and may offer a potential buffer against human-induced environmental change.
ICFO researchers have successfully connected two distinct quantum nodes using a single photon, demonstrating the feasibility of hybrid quantum networks. This breakthrough enables secure data transmission and advanced computing capabilities.
Researchers at Penn State found that popular cigar brands deliver more nicotine than commonly used cigarettes. The study suggests that small cigars, often perceived as safer alternatives, are just as addictive and harmful. The researchers plan to explore further comparisons between the toxins released by cigars and cigarettes.
Researchers have developed nanosponges that can absorb and neutralize toxins secreted by bacteria causing intraocular infections. These engineered nanoparticles, consisting of a polymeric core surrounded by natural red blood cell membranes, demonstrated effectiveness in protecting the retina from damage in animal models.
A new study reveals that chronic kidney disease patients have abnormal metabolites in their cells' energy centers, supporting the view of CKD as a state of mitochondrial dysfunction. Researchers hope to identify novel therapeutic targets for CKD using metabolomics.
A study published in Science Advances reveals that the EU's 2005 bird import ban drastically decreased global wild bird trade from 1.3 million to 130,000 annually. The ban has minimized the risk of exotic birds spreading worldwide and reduced biodiversity loss.
The EU project Nunataryuk explores the consequences of permafrost thaw on Earth's coldest shorelines, collaborating with local communities to devise new strategies. Thawing permafrost releases greenhouse gases, contaminates coastal waters, and harms marine habitats.
Researchers at KIT will develop process knowledge and innovative systems for series- and type-flexible production of electric motors. The 'AnStaHa' project aims to support medium-sized component suppliers and plant equipment providers in the automotive industry.
Researchers observed bowhead whales rubbing against rocks in Cumberland Sound, Nunavut, to remove dead skin. The warmer coastal waters may facilitate molting during summer months.
The 'Human Trafficking, Exploitation and Health' collection in PLOS Medicine explores the global crisis of modern slavery, highlighting extreme hazards suffered by trafficked workers in high-risk sectors. Research is needed for evidence-based approaches to prevention and providing appropriate health care for victims.
A new study found that both alcohol consumption and metabolic factors contribute to the risk of severe liver disease in the general population. The research, published in Hepatology, suggests that considering both factors together can improve risk assessment and detection of individuals at high risk of progressive liver disease.
Researchers at Technical University of Munich discovered that lower levels of microRNA 29 suppresses cardiac fibrosis, contradicting previous studies. The study highlights potential new approaches for developing drugs against fibrotic diseases, particularly in treating cardiac fibrosis.
Research by Stellenbosch University found that fynbos seeds can still be viable in soils where pines have grown for up to 30 years, enabling restoration. Clearing pine plantations within 40-50 years saves time and effort in rehabilitating sites.
Researchers at Dartmouth College created an evolutionary taxonomy of world constitutions using big data and machine learning. The study identifies surprising relationships and unexpected information about constitutional inspirations.
A study published in Laryngoscope found that certain genetic variations are linked to acquired laryngotracheal stenosis (ALTS), with African Americans being more susceptible. The researchers hope to use genetic testing to prevent ALTS through alternative breathing tube options.
Researchers found that blocking a key protein frees oxygen to damage iron-dependent proteins in lung and breast cancer cells, slowing their growth. The NFS1 protein is crucial for cancer cell survival in high-oxygen environments, but its inhibition may offer a new treatment option.
Research shows adult survivors of childhood cancer were 2.6 times more likely to have hypertension than expected based on age, sex, race, and BMI. The prevalence increased over time, with 70% of survivors having hypertension by age 50.
The IceCube Collaboration reports a critical measurement that shows energized neutrinos can be stopped cold as they pass through the Earth, exceeding previous expectations. The new study confirms the Standard Model of particle physics but also suggests potential for new physics beyond previously unknown spatial dimensions.
Wildlife researchers developed a structured decision-making process to set sustainable wild turkey harvest targets when reliable abundance estimates are not available. The approach incorporates uncertainty about population and harvest parameters, allowing managers to apply principles of structured decision making.
Heavy downpours caused schools and universities to close in Jeddah, with GPM's radar measuring precipitation at rates of over 115.5 mm/h and 90 mm/h. A 3-D view of the storms was created using data from NASA's Global Precipitation Measurement Mission.
Researchers at the University of Konstanz have successfully synthesized Europium(II) oxide nanoparticles, a ferromagnetic semiconductor with promising properties for spin-based electronics. The team developed a novel two-stage process to produce high-quality and anisotropic EuO-nanoparticles with tunable magnetic properties.
Research shows desert ants can evaluate cue reliability, using unambiguous cues like odors to navigate. This ability helps them compensate for accumulated path integration errors while searching for food.
The USDA has awarded grants to promote sustainable forest and rangeland management through innovative projects addressing emerging issues in the Western Gulf region and beyond. These projects aim to empower landowners and managers with science-based decision-making tools and resources to achieve conservation and economic goals.
A study of over 200 studies found that moderate coffee drinking is associated with lower risks of death, heart disease, and certain cancers. However, high consumption during pregnancy or in women at risk of fracture may be detrimental. The authors suggest further randomized trials to confirm the findings.
A study published in JAMA Ophthalmology found that ambulatory surgery centers performed 73% of cataract surgeries in 2014, up from 43.6% in 2001. The shift is driven by convenience, lower out-of-pocket costs, and decreased cost-per-case for insurers.
A strong link has been found between childhood obesity and mass media exposure in European countries. Parents are advised to limit TV viewing and computer use to 1.5 hours a day for children over four years old to promote healthy development.
Researchers found that bacteria can quickly share genes to maintain resistance, making it unlikely that reducing antibiotic use will reverse the trend. However, conjugation rates can be disrupted and reversed using existing drugs, paving the way for future development of new treatments.
Female gender and personal burnout linked to impaired sleep quality among shift-work nurses. Working in psychiatric settings with long cycle shifts and daytime dysfunction also associated with burnout.
A long-running study supports standard prescribing practices for glucocorticoid therapy in DMD patients, showing longer preservation of muscle strength and function and decreased risk of death. The study found that long-term use of these drugs delayed loss of mobility milestones and reduced mortality risk.
A study found that African-American patients with multiple myeloma have increased mutations in genes BCL7A, BRWD3 and AUTS2, while white patients have more mutations in TP53 and IRF4. This suggests a different approach may be needed for targeted therapies.
A UK study found that less than one per cent of children born with congenital heart disease participate in clinical trials, highlighting a need for improved treatment options. Researchers suggest establishing a congenital heart disease research network to conduct well-designed clinical trials and improve surgical outcomes.
A team of Caltech engineers has developed an empirical model of the California reservoir network, allowing managers to anticipate and respond to drought conditions more effectively. The model uses statistical techniques to learn from past data and shed light on how reservoirs will respond to different climate patterns in the future.
Researchers at Cincinnati Children's Hospital Medical Center have identified a strong biomarker candidate for early diagnosis and treatment of biliary atresia, a rare disease causing liver damage in infants. The test, using matrix metalloproteinase-7 (MMP-7), shows high sensitivity and specificity in detecting the condition.
Researchers construct whole-brain map of electrical connectivity in the brain, finding that low-frequency rhythms drive communication between frontal, temporal and medial temporal lobes. This work elucidates brain network communication during memory formation and supports efforts to enhance memory using brain stimulation.
A study published in Science Translational Medicine found that lung cancer often leads to pulmonary hypertension due to immune cell activation and inflammatory processes triggered by cancer cells. This discovery could lead to new therapeutic approaches for developing a treatment.
A study found that individuals with lower education levels experienced worse pain and function after two years if they lived in impoverished communities undergoing total knee replacement. Conversely, educational level was unrelated to outcomes in wealthier areas.
A large study found that testing for fever, high pulse rate, crackly breath sounds, and low oxygen levels could help distinguish pneumonia from less serious infections. The researchers suggest using these four measures to identify patients who need treatment with antibiotics, while reducing unnecessary prescriptions.
The Wildlife Conservation Society (WCS) has awarded $2.5 million in new grants through its Climate Adaptation Fund to support innovative conservation projects addressing the impacts of climate change on wildlife and ecosystems. The grants aim to help species, ecosystems, and communities adapt to rapidly shifting environmental conditions.
Scientists demonstrated that the Earth stops energetic neutrinos, interacting with matter and being absorbed by the Earth. The probability of neutrino absorption was consistent with expectations from the Standard Model of particle physics.
A study published in PLOS ONE found that Camponotini ant species have distinct microbiomes, with some stages having unique bacterial populations. This suggests that the microbiome may play a role in shaping the ant's biology and adaptation to its environment.
Research at Lund University found that HLF gene's failure to shut down leads to inadequate lymphocyte development, resulting in a single type of immune defense. The study aimed to identify mechanisms for breaking down leukemia, an aggressive blood cancer with poor prognosis.
New research from the University of Queensland shows that chronic stress can lead to a weakened immune response in cancer patients. The study found that lymphoma progression was accelerated in mouse models when stress pathways were induced, resulting in reduced effectiveness of immunotherapies.
Qiang Du, a leading applied mathematician at Columbia University, has been elected an AAAS Fellow for his distinguished work in applied and computational mathematics. His research focuses on theoretical analysis, numerical simulations, and mathematical modeling of various applications.
Researchers Prof. Fei Zheng and Jin-Yi Yu found significant skill score differences between EP and CP El Niño events, with EP events better predicted at all lead times. This is attributed to systematic forecast biases and an overly warm eastern Pacific during the spring season for CP El Niño prediction.
Researchers found that young zebra finches are biased to produce specific sound patterns, similar to those in human languages and music. This bias is thought to be influenced by innate brain mechanisms, supporting the idea of a 'universal grammar' for language learning.
A recent international study suggests that LED lighting upgrades could lead to increased light pollution, as individuals and cities switch to brighter lamps. The 'rebound effect' might cancel out initial energy savings, causing global night-time surface brightness to increase by 2% annually.
Researchers detected abnormal prion protein in the skin of nearly two dozen CJD patients and found that healthy mice infected with skin extracts developed prion disease. The study raises questions about potential surgical instrument contamination and the use of skin samples as a diagnostic test for human and animal prion diseases.
A recent study of publicly available regulatory documents found that biosimilars have a comparable safety profile to their originators. The analysis identified only minor differences in safety concerns for most substances, with the exception of infliximab, where more issues were reported.
Researchers have discovered a new marker, Ratiometric thrombin-Activatable Cell Penetrating Peptide, to identify joints with established arthritis and predict subsequent swelling. This imaging tool may help clinicians monitor arthritis development and progression, enabling early intervention.
Brookhaven Lab scientists Anatoly Frenkel, Morgan May, Rachid Nouicer, Eric Stach, and Peter Steinberg were elected 2017 American Physical Society Fellows for their exceptional contributions to physics. The fellows were recognized for their innovative research in materials physics, astrophysics, and nuclear physics, including discoveri...
Researchers developed tiny robots measuring a few millionths of a metre long that can diagnose and treat illness in hard-to-reach areas. The robots could track chemical changes linked to illness onset and deliver targeted drugs with high precision, potentially paving the way for new diagnostic and therapeutic approaches.
A recent study reveals a strong link between temperature and methane bubble emissions on a global scale. The research found that warming temperatures lead to increased production of these gas bubbles in aquatic environments, contributing to greenhouse gas emissions.
Researchers at UVA Cancer Center are developing a tool to assist patients in making treatment decisions based on their tumor's genomic information. The tool aims to provide personalized comparisons of treatment options, incorporating factors like age, personal priorities, and health conditions.
Researchers have successfully bred soybeans with both high yields and high protein levels, addressing a long-standing challenge in plant breeding. The genetic findings suggest that a specific gene on chromosome 15 can increase protein concentration without significantly decreasing yields.
Researchers at Boston Children's Hospital have developed a soft robotic system that can provide isolated support to the right or left ventricle, addressing one-sided heart failure. The system combines rigid bracing with soft robotic actuators to help diseased heart chambers pump blood effectively.
A new computational framework allows working with infinities and infinitesimals numerically, giving unexpected answers to two long-standing Hilbert problems. The Infinity Computer supercomputer enables numerical computations with infinite and infinitesimal numbers, previously only symbolically represented.
Researchers analyze order flow for pairs of NASDAQ 100 stocks and find four groups with large mutual differences, surprising given the lack of reflection in actual prices. This discovery contributes to modeling price evolution and could be used to evaluate the impact of financial crises.
A new study by an international research group has discovered a natural process that splits water into hydrogen and oxygen at the Earth's core-mantle boundary. This reaction could generate massive amounts of free hydrogen, affecting the deep Earth's water and hydrogen cycles. The findings also suggest the potential for large-scale oxyg...
A global analysis found that artificially lit surface of Earth at night is growing in size and brightness in most countries. This trend has nearly matched the global rise in gross domestic product.
Researchers sequenced ancient plague genomes from 4,800 to 3,700 years ago, revealing a possible introduction of Yersinia pestis into Europe during the Neolithic period. The study suggests that the plague spread along with the migration of steppe nomads and may have played a role in genetic turnover of European populations.
Researchers found that ribbed mussels were effective at removing nitrogen and other excess nutrients from the Bronx River, with an estimated 138 pounds of nitrogen removed. The study suggests that mussel farming could be a viable tool for improving water quality in urban estuaries.
Researchers discovered that Tau protein interacts with and disrupts cell membranes, forming toxic complexes that induce neuronal toxicity. The complexes are made up of Tau proteins and phospholipids from the membrane, and can be taken up by neurons more readily than the fibril form of the protein.
Tingyi Gu, an assistant professor at the University of Delaware, has received a $450,000 grant from the Air Force Office of Scientific Research to develop high-speed and low-power optical interconnects. Her research aims to improve the performance and scalability of devices made with two-dimensional materials.
Researchers have found that the scales of sharks and skates share a common origin with teeth, and that ancient fishes had multiple layers of armor. Meanwhile, studies on backbone formation reveal a shared evolutionary history between jawed vertebrates, including humans.
Scientists from Kiel University and University of Trento create stable 3D network of carbon nanotubes using wet chemical infiltration process. The method retains beneficial properties of CNTs, enabling applications in battery technology, medical implants, sensors, and electronic components.
Research at Goethe University Frankfurt finds that more intelligent individuals have brain regions more strongly connected to each other within their own 'family', but less connected to others. This may help them filter out irrelevant information and focus on important tasks.
A new underwater acoustic localization system has been developed to estimate the trajectory of sound sources in the ocean without multiple receivers or anchor nodes. The system uses bathymetry information to discriminate the location of the source of the signal.
A team of researchers discovered that different subtypes of muscle cells play critical roles in orchestrating tissue regeneration in flatworms. Removing specific muscle groups was shown to disrupt the regeneration process, revealing essential functions for longitudinal and circular fibers.
Mussel larvae are sensitive to ocean acidification due to their high calcification rate and limited ion regulation capacity. Researchers found that larvae can increase pH and carbonate concentration below the shell to promote calcification, but this is reduced by increasing acidification
A new study proposes a way to directly observe predicted ion-induced shock waves, which can help optimize ion-beam cancer therapy. Shock waves contribute to thermomechanical damage in tumour tissue, increasing the volume of cells exposed to reactive species.
Researchers found that water in minerals can split up under extreme pressure, liberating oxygen to combine with iron and create a novel mineral. This discovery could have implications for the Earth's geologic history and potentially explain the Great Oxygenation Event.
Recent studies show that vehicle-to-grid technology can improve battery life and provide valuable clean energy, but upgrading the system is necessary. Dr. Uddin and Dr. Dubarry developed an accurate battery degradation model to predict the impact of V2G on battery health.
A study comparing diabetes foot care regions in England found that areas with comprehensive services had significantly lower rates of major amputations. The introduction of key services, including podiatry staffing and orthotist availability, led to improved outcomes.
Researchers found that children with higher aerobic capacity and motor ability had increased gray matter in brain regions important for executive function, learning, and language processing. This association was also observed in regions essential for reading and language skills.
A new study reveals barriers to routine HIV testing in emergency departments and acute medical units in the UK and US. The analysis found that operational and patient-specific factors hindered HIV testing coverage, while commitment from medical staff and local specialist providers facilitated its offer.
Researchers at Columbia University Irving Medical Center have identified biomarkers that can aid in the development of better treatments for schizophrenia. The biomarkers were successfully tested in over 90% of individuals who received ketamine, and reliably distinguished them from those who had been given a placebo.
Researchers at Brigham and Women's Hospital have developed a novel surgical adhesive inspired by the elastic defensive slime of the Dusky Arion slug. The new sealant mediates strong interfacial contact, conforms to skin and tissue, and closes holes in heart tissue with high effectiveness.
A recent survey found that 16%-48% of participants believed vaginal birth was harmful to sexuality, despite research contradicting these claims. Individuals who endorsed these beliefs were more likely to hold negative attitudes toward female genitalia and rely on reality-based information.
Research suggests that mothers who were overweight or obese before pregnancy face a higher risk of compromised neurodevelopmental outcomes in their children, including Attention Deficit Hyperactivity Disorder and Autism Spectrum Disorder. Maintaining a healthy weight during pregnancy may also be crucial for optimal brain development.
Scientists create dense ensembles of quantum spins in diamond with high resolution, enabling enhanced sensors and resources for quantum technologies. Nitrogen-Vacancy (NV) defects are used to measure magnetic fields and quantum computing, thanks to their unique properties such as long coherence times at room temperature.
A team of scientists at Université de Montréal developed a novel strategy to block the transfer of antibiotic-resistant genes by binding molecules that target the TraE protein. This approach has the potential to reduce the spread of resistance genes, preserving the potency of antibiotics and improving human health.
A 24,502-person study found that regular physical activity in elderly individuals reduced cardiovascular disease risk by 14% compared to those who were inactive. Even low-intensity activities like walking and gardening are recommended.
A study published in Academic Emergency Medicine found that intranasal ketamine had more minor side effects such as bad taste and dizziness compared to intranasal fentanyl in children with suspected extremity fractures. No significant differences were observed in efficacy or pain relief between the two drugs.
Research at Kiel University has discovered that the bacterial colonization of the intestine controls peristaltic functions. The study found that only a balanced microbiome can regulate tissue contractions, with certain molecules secreted by bacteria intervening in the control mechanism.
A study published in Autism Research found a correlation between shorter time intervals between pregnancies and increased risk of Autism Spectrum Disorder in second-born children. The researchers suggested that couples planning pregnancy should discuss their options with a trusted doctor or healthcare provider.
A study of over 400 adults with prehypertension found that combining a low-salt diet with the DASH diet substantially lowers systolic blood pressure, especially in those with higher baseline readings. The combination diet resulted in reductions of up to 21mmHg in systolic blood pressure, surpassing the effect of prescription drugs.
Case Western Reserve University researchers found infectious prions in CJD patient skin, which are 1,000-100,000 times lower than in brain tissue. This discovery raises concerns about potential disease transmission through surgeries and may pave the way for less invasive diagnostic techniques.
A recent study found that opening windows or doors reduces carbon dioxide levels in bedrooms, correlating with improved subjective sleep assessments. Lower CO2 levels also associated with better objective sleep measures, including efficiency and awakenings.
Researchers from CNRS and INSA Strasbourg propose a new mechanism to explain lower-than-predicted vibrations near tracks as train speed increases. They show that a large part of energy is trapped in the heterogeneous ballast layer, leading to accelerated degradation.
Scientists demonstrate that Leishmania adaptation results from frequent and reversible chromosomal amplifications, which enables the parasite to maintain genetic diversity while selecting for new alleles. This study has important consequences for understanding human Leishmania infection and identifying parasite drug resistance mechanisms.
A recent study by Remy Wenmaekers reveals that physical measures have little effect in reducing sound levels due to instrument contribution. Earplugs are the only solution to help musicians reduce excessive sound levels, especially for trumpet and flute players.
Researchers discover misfolded prion proteins in skin samples from Creutzfeldt-Jakob disease patients, but find lower amounts in the skin compared to brain tissue. The study raises concerns about possible transmission of prion diseases through surgical procedures involving the skin.
A recent study published in the Journal of Soil and Water Conservation found that farmers prefer cash payments with insurance or tax credits over certifications, but may require more money for these incentives. Researchers met with 49 farmers in northwest Ohio to test different incentives and gather insights on best management practices.
Researchers at King's College London have discovered novel mechanisms of cell death involved in debilitating neurodegenerative disorders like Alzheimer's disease and Parkinson's disease. This finding could lead to new treatments or delay the progression of currently incurable conditions.
A new approach models and predicts the spread of 'superbugs' by analyzing genomic data, identifying key drivers of transmission and enabling early intervention. The method successfully pinpointed the facility origin of every patient's infection in a real-time outbreak simulation.
A study found that 11% of younger cancer patients and 25% of older adults developed new cancers between 2009-2013. This prevalence highlights the need for better research representation and outcomes among survivors.
A recent study published in the Journal of Child Psychology and Psychiatry reveals that cognitive-behavioral sleep interventions are most effective for adolescents with higher levels of anxiety and depressive symptoms. These findings suggest that sleep improvement treatments can be a useful tool in addressing mental health issues.
The IceCube detector has successfully measured Earth's absorption of high-energy neutrinos, confirming that the planet can block these particles. The study provides insights into neutrino interactions and is consistent with the Standard Model of Particle Physics.
A study found that thyroid cancer survivors are at increased risk of many aging-related diseases, including diabetes, heart disease, and osteoporosis. Those diagnosed with thyroid cancer before age 40 had the highest risk for some of these diseases.
A study in Toronto found that commuters are exposed to high levels of noise while using public transport, with peak levels exceeding EPA recommended thresholds. Researchers recommend reducing noise exposure through materials and equipment improvements, as well as promoting hearing protection.
Researchers found that six weeks of intense exercise improved high-interference memory, a type of memory that allows us to distinguish between similar objects. Participants who experienced greater fitness gains also showed increased brain-derived neurotrophic factor (BDNF), supporting the growth and function of brain cells.
Researchers investigated the effects of synthetic cannabinoid JWH-018, finding initial impairments in neurocognitive function and subjective feelings of high. The results suggest that common use scenarios may not be fully represented by the low drug concentrations used in the trial.
A new analysis of published studies found a 45% increased risk of congenital heart defects in IVF-conceived children compared to spontaneously conceived children. The study included 25,856 children from IVF and 287,995 from spontaneous conception, finding 1.30% and 0.68% cases of congenital heart defects respectively.
Two storm systems were visible on satellite imagery, one in the Pacific Northwest and another in the northeastern U.S. Heavy rain and snow are expected for pre-Thanksgiving travelers in these regions. Additionally, a cold front is exiting the East Coast, bringing cooler temperatures to the eastern U.S.
A study of community-dwelling individuals aged 70-90 found that leaving the house daily lowered mortality risk, independent of social, functional, or medical factors. Daily outings facilitated exposure to beneficial experiences and allowed resilient individuals to remain engaged despite physical limitations.
Researchers found that bowhead whales in the eastern Canadian Arctic molt and rub on large rocks to facilitate exfoliation, shedding parasites and sun-damaged skin. This behavior may help reduce ultraviolet radiation damage, important for long-lived species like bowhead whales.