Scientists have identified a new species of orangutan, the Tapanuli orangutan, with only around 800 individuals remaining due to habitat loss and hunting. The discovery highlights the urgent need for conservation efforts to protect this critically endangered species.
Researchers confirm Sinosauropteryx had striped tail and 'bandit mask', suggesting it lived in open habitats. The dinosaur's countershaded body revealed its habitat was not dense forest but rather more open terrain.
A study published in Current Biology suggests that climate change may force bamboo lemurs to eat culm for longer periods, leading to potential starvation. The researchers analyzed the lemurs' feeding habits and found that a short dry season has been crucial to their survival in the past.
Researchers argue that identifying molecular subtypes of different cells within tumors can improve breast cancer treatment. They advocate for more accurate diagnostic tests to capture irregularities between tumor cells, which are often treated as a whole.
Red-toothed shrews experience a dramatic decrease in braincase size from summer to winter, with some organs even shrinking by 30%. This seasonal change may help them conserve energy during food scarcity.
Researchers analyzed complete mitochondrial genomes from ancient saber-toothed cat samples, finding that the two species shared a common ancestor about 20 million years ago. The study suggests that saber-toothed cats continued to live in Europe much more recently than previously thought.
Scientists found that H7N9 avian flu viruses can spread among ferrets via respiratory droplets and are minimally responsive to commonly used antiviral drugs. The study also shows that these viruses have a high potential for pandemic due to their efficient replication in human airway cells and the lungs of animal models.
Researchers developed a brain-training audiogame that improved elderly people's ability to understand words in noisy situations by 25%. The training was more effective than traditional hearing aids alone and showed lasting benefits.
Researchers found that introducing wild mouse gut bacteria to laboratory mice improved their survival rate against the flu virus and reduced tumor growth. The study suggests using natural microbiota in lab mice could improve disease modeling and lead to new therapeutic approaches.
Researchers discovered two sets of neural signals control diaphragm movement, one in the brain and one in the spinal cord. They used a drug to activate this alternative pathway, restoring breath-like movements in rodents.
Research on mitochondrial DNA from ancient remains suggests that two distinct groups, Maritime Archaic and Beothuk, inhabited the island multiple times with a possible hiatus. The findings imply that Newfoundland's population history involves multiple independent arrivals by indigenous peoples.
Researchers analyzed ancient DNA from Rapa Nui samples, finding no genetic links to South Americans; instead, they suggest Native American ancestry may be a result of recent history. The study highlights the value of ancient DNA for testing hypotheses about past interactions.
Researchers found that mothers alter their voice timbre when speaking to infants, regardless of native language. This consistent shift enables computers to distinguish between infant- and adult-directed speech.
Researchers warn of potential cobalt supply chain issues due to increasing lithium-ion battery demand for electric vehicles and portable electronics. They suggest strategies like enhancing recycling and developing new cathode materials to mitigate potential shortages.
A new battery powered by sulfur, air, water, and salt has been developed to store twice as much energy as a lead-acid battery while being nearly 100 times less expensive to produce. The invention aims to help integrate more renewable energy into the grid, addressing variability challenges.
Researchers identified a mutated gene in budgies that synthesizes the bird's yellow pigments. The findings could be applied to many parrots around the world and shed light on the evolutionary change that led to their brilliant colors.
Neandertal DNA has been linked to various human characteristics, including skin tone, hair color, and sleep patterns. The study suggests that sun exposure plays a crucial role in shaping these traits, with Neandertal genes contributing to lighter or darker skin tones.
Researchers have analyzed DNA of living and dead Lord Howe Island stick insects, confirming their species identity and increasing likelihood of successful reintroduction. The study highlights the importance of museum collections in taxonomic validation.
A fecal transplant from a lean donor can temporarily improve insulin resistance in obese men, but only half of the recipients responded. The success of the treatment depends on each patient's fecal gut-bacterial makeup, which can be predicted through analysis.
Researchers used computational simulations to test the effectiveness of various radical pairs in avian magnetoreception. The results indicate that the current understanding of the radical-pair mechanism cannot explain the disruption of the bird's magnetic compass by certain radiofrequency magnetic fields.
Researchers develop mathematical model that uncovers link between OCD beliefs and actions. People with OCD develop accurate sense of how things work but disregard it when making decisions, leading to second-guessing themselves.
Research found that boys at risk of psychopathy have impaired ability to respond to laughter, with reduced brain activity in regions associated with social affiliation. This suggests they may not experience the world in the same way as peers, leading to different choices and behaviors.
Researchers have developed a wireless sensor and smartphone app that can detect amphetamines in human urine in seconds, with unprecedented sensitivity and low risk of false-positive results. The prototype device is portable enough to be worn as a bracelet and costs around $50 to produce.
Researchers successfully restored consciousness in a 35-year-old man who had been in a vegetative state for 15 years after implanting a vagus nerve stimulator. The study reveals major changes in brain activity and connectivity, suggesting that right intervention can yield changes in consciousness even in severe clinical cases.
A potent gene immunotherapy strategy induces robust immune tolerance in mice with multiple sclerosis, reversing symptoms and stabilizing brain function. The treatment, using a viral vector to deliver myelin sheath protein, protects against disease progression and restores mobility.
Researchers reconstructed African population structure using ancient DNA from 15 individuals, revealing a more complex history than previously thought. The findings show that populations related to indigenous people of southern Africa had a wider distribution in the past, contributing to ancestry of modern-day populations.
Researchers found that neurons fire in both cases of noticing and non-noticing, but differently, supporting a nuanced view of consciousness. The study used brain electrodes to record individual neuron activity in awake patients.
Researchers discovered that saccharin inhibits the activity of bitter taste receptors stimulated by cyclamate, while cyclamate reduces the off-taste elicited by saccharin. This finding provides tools for developing superior sweetener blends and improving their taste in food products.
Researchers have found that electric eels use a clever trick to deliver an intense shock: they leap from the water to target threatening animals above water. This behavior prevents their electrical discharges from weakening as they dissipate through the water, making it a more effective way to deter predators.
Researchers used twin study to investigate role of genes and oral microbiome in cavity formation, finding that dietary and hygiene habits play a significant role. The study also revealed a link between specific bacteria and sugar consumption, with certain species associated with more cavities.
Researchers found that calorie-restricted mice develop thicker, longer fur coats and increased blood vessels to insulate against cold temperatures. This adaptation helps them conserve energy and survive in limited food conditions.
Researchers found that chronic cigarette smoke exposure leads to epigenetic changes in lung cells, silencing protective genes and priming them for cancer. These changes can be reversed by quitting smoking, suggesting a potential strategy for reducing lung cancer risk.
Researchers have found that human papillomavirus 16 (HPV16) infections can have varying levels of cancer risk due to unique genetic variations. Studies revealed thousands of distinct HPV16 genomes in infected individuals, with some variants linked to increased carcinogenic potential.
A phase 1b clinical trial found that combining pembrolizumab with T-VEC resulted in a 62% overall response rate and a complete response rate of one-third in metastatic melanoma patients. The treatment combination worked by transforming cold tumors into hot ones, allowing pembrolizumab to deliver a beneficial enhancement.
Expert John Deutch argues that the US can't lower carbon emissions while growing the economy due to the Kaya Identity model. He suggests planned reductions won't be enough to avoid climate change's impact.
Researchers at the University of Maryland have developed a water-based lithium-ion battery that reaches 4.0 volts and achieves high energy density while maintaining safety. The new gel polymer electrolyte coating prevents water from decomposing and forms a stable interphase, protecting the anode and preventing fires or explosions.
Two independent mouse studies found that ketogenic diets improved memory in older animals and increased their chances of living longer. The diets also preserved physical fitness and altered insulin signaling pathways in the mice. Further research is needed to fully understand the effects of a ketogenic diet on human health and aging.
Researchers discovered a bacterial protein, EroS, that induces mating behavior in single-celled organisms called choanoflagellates. Swarming among these unicellular organisms precedes sexual reproduction, and the protein's enzymatic function is responsible for this change.
A 1°C warming of the Antarctic Ocean led to a single pioneer species dominating the community, driving a reduction in overall species diversity and evenness. Marine organisms also responded with increased growth rates, particularly in warmer months.
A decline in navigational skills could be an early sign of Alzheimer's disease, according to researchers. Researchers are exploring the possibility of using navigational impairments as a diagnostic tool for neurodegenerative diseases.
A study in monkeys reveals that two distinct brain areas, the orbital frontal cortex and ventrolateral prefrontal cortex, are involved in decision-making. The researchers found that monkeys with lesions in one area had impaired ability to track probability, while those with lesions in the other area showed a preference for rewards.
Researchers found that vibrato-like frequency modulation improves the detection of formants, key acoustic components encoding animal size and identity. This mechanism has independently evolved in six mammalian orders, suggesting its importance for transmitting information about an individual's size and identity through calls.
The study outlines infrastructure changes for 139 countries to transition to 100% renewable energy, reducing energy consumption, air pollution deaths, and creating jobs. The roadmap aims to avoid global warming and create energy self-sufficient countries.
Researchers suggest that plant hormones produced by plants can be synthesized by gut microbes, influencing inflammatory diseases. Consuming ABA-rich fruits and vegetables may help alleviate aspects of diabetes.
Migratory Eurasian reed warblers rely on changes in magnetic declination to guide them along the east-west axis, solving a challenging navigational problem. The birds learn to recognize large-scale spatial patterns of declination gradients during their annual movements.
Researchers have developed a novel blood biopsy test that reads platelets to detect human lung cancer with high accuracy. The thromboSeq test analyzes tumor RNA absorbed by circulating platelets and has shown promising results in diagnosing non-small cell lung cancer, achieving up to 90% accuracy.
Researchers found that seasnakes living in polluted areas have darker skin, which helps them bind and rid their bodies of contaminants. This is an example of industrial melanism, where dark-colored varieties thrive in industrial environments.
Researchers used CRISPR to manipulate ant eggs, resulting in germline changes that affect every cell in the adult colony. The study found that knocking out the orco gene affected olfaction, social behavior, and brain anatomy, providing insights into gene regulation and its impact on complex biological systems.
Researchers have developed bendable batteries that can run on biocompatible liquids like normal IV saline solution and cell-culture medium, outperforming most wearable lithium-ion batteries in charge-holding capacity and power output. The batteries' design also enables potential biomedical applications, such as consuming essential oxyg...
Researchers in Japan and China create a way to isolate solid carbon dust from gaseous carbon dioxide, yielding a promising approach to fix carbon in a stable form. The method also shows potential for treating atmospheric CO2 and scrubbing other harmful gases.