Research highlights that wealthy countries waste more food, but urbanization is narrowing this gap. Global food waste has increased by 24% since 2004, with rising waste in middle-income countries driven by economic growth and urbanization.
A genomic analysis of over 1,200 people from across South Africa reveals how colonial-era European, Indigenous Khoe-San peoples, and enslaved people contributed to the modern-day gene pool. European genes were more common in males, while Indigenous genes were more common in females.
A team of animal behavior experts found that Gifted Word Learner dogs can distinguish between toys used for tugging versus fetching, even when the toys don't share any obvious physical similarities. The dogs were able to remember those categorizations for long periods without prior training.
Scientists found that stretching the skin stimulates immune cells and increases its ability to absorb large molecules, including vaccines. This approach resulted in higher antibody levels against the H1N1 flu antigen compared to traditional needle-free delivery methods.
Researchers found genetic adaptations in response to micronutrient shortages and surpluses, particularly in regions with iodine-poor soils. The study provides insights into the impact of micronutrient availability on human evolution, highlighting potential vulnerabilities to deficiencies as climate change affects soil nutrient levels.
A study published in Cell Host & Microbe found a significant link between the maternal gut microbiome and preterm birth. The researchers identified Clostridium innocuum as a key bacteria species that may contribute to preterm birth by degrading estradiol, a critical hormone during pregnancy.
Researchers create a device that prints bone grafts directly onto fractures and defects using a modified glue gun. The tool enables rapid creation of complex implants without pre-fabrication and demonstrates high structural flexibility, anti-inflammatory properties, and natural bone regrowth.
Researchers developed an acid-resistant hydrogel called ultrastable mucus-inspired hydrogel (UMIH) that improved gastrointestinal wound healing in animal models and outperformed a clinically approved mucosal protectant. UMIH showed 15 times stronger adhesive abilities and remained stable for 7 days in acidic conditions.
A new class of targeted therapy showed promise in treating head and neck squamous cell carcinoma (HNSCC) in pet cats, with 35% of patients experiencing controlled disease. The drug, which targets the transcription factor STAT3, also raised levels of PD-1, a protein associated with an immune response to cancer.
Researchers have created glow-in-the-dark succulents using light-emitting compounds that absorb and release light slowly. The plants can shine in various colors and stay lit for up to two hours after exposure to sunlight or indoor LED light.
A study published in the journal Joule estimates that space-based solar power could reduce Earth-based renewable energy costs by 7-15% and offset up to 80% of wind and solar power by 2050. The heliostat design, with higher potential for continuous solar energy capture, would outperform wind and solar power.
Researchers discovered seabirds, like streaked shearwaters, drop feces every 4-10 minutes while flying to avoid fouling feathers and attracting predators. This unique habit may help the birds stay clean and fertilize the ocean below with nutrient-rich droppings.
Scientists have successfully decoded inner speech using brain-computer interfaces (BCIs) with an accuracy rate of up to 74%. The BCI system can interpret neural activity related to thought processes, allowing individuals with severe paralysis or motor impairments to communicate more naturally and comfortably.
A study found that many low carbon taxes were initially implemented for non-climate reasons, such as generating revenue or meeting international expectations. Despite being ratcheted up over time, only a few countries showed strong evidence of sequencing to increase emissions reduction.
Researchers discovered a brain mechanism behind 'specific musical anhedonia,' where people experience no pleasure from music despite normal hearing and other experiences. Studies using the Barcelona Music Reward Questionnaire support this idea, showing reduced activity in the reward circuit when listening to music.
An interstellar mission to test astrophysical black holes is proposed by Cosimo Bambi, harnessing nanocrafts and laser beams to gather data on nearby black holes. The mission aims to answer pressing questions in physics, including the nature of event horizons and general relativity.
A new analysis of 18 species of carnivorous dinosaurs reveals that not all giant predators had strong bites, but instead specialized in different feeding styles. This study demonstrates the diversity of feeding strategies among giant carnivores, challenging the assumption that one 'best' skull design existed for being a predatory giant.
Researchers found that potatoes originated from a hybridization between tomato-like species and potato-like species from South America about 9 million years ago. This event triggered the formation of tubers, allowing early potatoes to adapt to harsh environments and fill diverse ecological niches.
Researchers investigated the sustainability of ancient Roman concrete, finding that reproducing its recipe would require comparable energy and water, emitting similar CO2. However, Roman concrete's heightened durability might make it a more sustainable option due to reduced maintenance needs, potentially reducing environmental impact.
A recent study estimates that scuba diving generates $0.9 to $3.2 billion in annual revenue, employing 124,000 people, 80% of whom are locals. This industry funding supports marine conservation initiatives and boosts local economies.
A systematic review of field and laboratory studies identifies 24 different types of cost in animal contests, grouped into six categories. The researchers propose a three-step process to link short- and long-term costs, allowing for the estimation of individual fitness outcomes.
Scientists have developed a technology that can extract water from lunar soil and convert carbon dioxide into oxygen, fuel, and chemicals for human exploration. This innovation has the potential to mitigate the need for transporting essential resources like water and fuel from Earth.
A new study found that live contemporary dance performances trigger brainwave synchrony among audience members, signaling shared engagement. The researchers also discovered that the delta band of slow-frequency brainwaves was responsible for capturing this shared experience.
Researchers propose using chemical sensors to diagnose bacterial infections by detecting volatile organic compounds in bodily fluids, providing a rapid and affordable diagnostic test. The technology has the potential to improve treatment plans and combat antibiotic resistance.
Researchers analyzed genomic data from over 2,700 Indians to reconstruct evolutionary history, revealing ancestry tied to Neolithic Iranian farmers, Eurasian Steppe pastoralists, and South Asian hunter-gatherers. The study highlights the impact of ancient migrations on genetic variation and disease susceptibility.
A team of whale experts discovered that southern resident killer whales regularly use lengths of bull kelp as tools to groom each other during social interactions. The whales fashion the tools by breaking off the ends of kelp stalks and then press them against a partner, rolling them between their bodies for long periods.
Scientists developed a method to store short messages in frozen ice by manipulating bubble size and distribution. Binary coding proved more effective than Morse code for longer messages, with potential applications beyond messaging, such as improving metal smelting and manufacturing processes.
Researchers found social integration, urban living, formal education, and religion impact how people view animals. This affects their willingness to engage with conservation programs.
A recent study published in Current Biology found that sauropods, a type of herbivorous dinosaur, relied heavily on their gut microbes for digestion. The analysis of plant fossils in the dinosaur's gut suggests that they engaged in minimal oral processing and instead ate bulk feeders.
Recent advances in tissue-agnostic cancer drugs have resulted in highly effective treatments, but few are approved for children. Oncologists argue that these drugs should be licensed for all ages due to their effectiveness and fewer side effects. The researchers suggest that age-agnostic approvals could be made through analyzing electr...
A new study using NIH's All of Us Research Program data finds that people from the same reported racial or ethnic group can have wide ranges of genetic differences. Genetic ancestry is more complex than self-reported race and ethnicity, with significant associations between ancestry and biological traits like BMI and height.
Researchers discovered that bacteria can utilize fluid pockets created by yeast cells to speed up their movement and spread. This new mechanism reveals a key role for physical properties in microbial interactions, potentially enhancing bacterial colonization of environments with limited moisture.
Gene editing technologies could enable climate-resilient crops, higher yields, and reduced fertilizers and pesticides. Researchers advocate allowing gene editing in organic farming to support the EU's goal of 25% organic agriculture by 2030.
Researchers developed a wireless forehead e-tattoo that decodes brainwaves to measure mental strain, providing an objective alternative to subjective surveys. The device can detect increased cognitive demand and predict mental fatigue, with potential applications in workplaces and homes.
Researchers have created contact lenses that convert infrared light into visible light, allowing users to perceive multiple infrared wavelengths. In experiments, mice and human participants showed enhanced infrared vision when their eyes were closed, with improved color perception for color blind individuals.
A genetic variant of ACSF3 has been identified as contributing to the co-evolution of increased human height and basal metabolic rate. This variant is found in humans but not in non-human primates, suggesting a link to the dietary shift towards meat consumption that occurred during modern human evolution.
Scientists have created a new way to store and decode data using synthetic molecules, which can be used to unlock computers with encoded passwords. The method involves designing molecules that contain electrochemical information, allowing messages to be decoded using electrical signals.
Researchers have engineered a bio-ink that can promote coral larvae settlement and restore coral reefs. The ink, dubbed SNAP-X, slowly releases chemical cues into seawater, attracting coral larvae and encouraging them to settle on the reef. Testing showed that larvae were 20 times more likely to settle on substrates sprayed with SNAP-X.
Researchers found that eastern and western chimpanzees exhibit different drumming patterns, including evenly spaced hits and alternating intervals. Western chimpanzees use a faster tempo and integrated their drumming earlier in pant-hoot vocalizations.
Scientists at the University of Southern California have developed a wearable lactation pad that monitors breast milk for safe levels of acetaminophen. The device provides real-time information, enabling parents to make informed decisions about breastfeeding and medication use, and may also be adapted to detect other drugs and biomarkers.
Researchers analyzed 724 ancient Chinese poems to track the decline of the Yangtze finless porpoise's habitat range. The study found that the porpoise's range decreased by at least 65% over 1,400 years, with most of this decline occurring in the past century. This ancient art form provides a unique window into biodiversity conservation.
Scientists have developed the most broadly effective antivenom to date, neutralizing the neurotoxins of 19 deadly snakes including black mambas and king cobras. The antivenom combines protective antibodies and a small molecule inhibitor, offering a potential universal solution for snakebite victims.
A recent study on the Haenyeo divers from Korea found that they have distinct genetic adaptations, including gene variants associated with cold tolerance and decreased blood pressure. The researchers also discovered two unique gene variants in the Haenyeo population that may help them cope with the pressures of diving.
Scientists have discovered a 113-million-year-old hell ant fossil in Brazil, representing the earliest undisputable geological record of ants. The find showcases highly specialized anatomical features, suggesting unique hunting behaviors in ancient insects.
Mind blanking is a common experience characterized by lapses in attention, memory issues, and cessation of inner speech. Studies have shown that it's associated with specific neural signatures and changes in arousal levels, leading to malfunctions in key cognitive mechanisms like memory and language.
Researchers have developed a building material that uses fungal mycelium and bacteria cells, which can self-repair for at least a month. This innovation has the potential to replace conventional building materials with high carbon footprints like cement, reducing emissions and promoting sustainability.
Researchers have developed a bioreactor that can produce over 10 grams of chicken muscle for cultured meat applications. The system enables cell distribution, alignment, contractility, and improved food-related properties, making it a practical alternative to vascular-based methods.
Researchers explore the potential risks of human-AI relationships, including interference with human social dynamics and the risk of AIs offering harmful advice. They call for more research on the psychological process involved, which could help intervene to prevent malicious AI advice from being followed.
Researchers found that nutrient hoarding by selfish bacteria influences carbon and nutrient availability in freshwater ecosystems. In two Croatian lakes, mesotrophic Crniševo Lake showed higher rates of selfish activity than oligotrophic Kozjak Lake.
Researchers created solar cells using simulated Moon dust, converting sunlight into energy efficiently and withstanding radiation damage. The new panels produced up to 100 times more energy than traditional solar panels, cutting launch mass by 99.4% and transport costs by 99%.