Scientists have designed a 4D-printed soft robot with unique properties, enabling it to roll uphill, navigate uneven terrain, and carry heavy loads. The robot's ability to adapt to its environment was a surprise discovery for the researchers, who hope to unlock new applications in confined spaces.
Increasing physical activity and improving fitness are superior to weight loss in reducing mortality risk and treating obesity-related health conditions. Employing a weight-neutral approach also reduces the risks associated with yo-yo dieting.
The study found that coral reefs' capacity to provide essential benefits and services, including food and livelihoods, has declined significantly. The decline in coral reef coverage and biodiversity is attributed to climate change, overfishing, pollution, and more.
Researchers found 62 bone tools at Contrebandiers Cave, Morocco, with shaping and use marks indicating they were used for scraping hides to make leather and furs. The discovery highlights the pan-African emergence of complex culture and provides evidence for the earliest clothing in the archaeological record.
Researchers found that subjects' heart rates synchronized even when listening to a story alone, as long as they were paying attention. This synchronization was predictive of conscious processing of the narrative, and had implications for understanding mindfulness and the brain-body connection.
Researchers at MIT and Institut Pasteur have created an efficient method for assembling entire genomes, including the human genome, in minutes using personal computers. This approach uses minimizer-space de Bruijn graphs to store only a small fraction of nucleotides while preserving overall genome structure, enabling faster processing ...
A team of researchers has successfully toilet-trained 11 out of 16 calves, reducing the risk of ammonia emissions and improving farm efficiency. The MooLoo training method involved rewarding successful latrine use and using gentle deterrents to encourage correct behavior.
Despite 10,000 years of inbreeding, the kākāpō genome sequencing reveals that the species has lost potentially deleterious mutations and now carries fewer harmful mutations than extinct mainland populations. This finding suggests that natural selection may have facilitated genetic purging in small populations.
Researchers are studying how climate change is forcing animals to evolve and adapt, with changes in beak and ear sizes reported in birds and tail length increases in mice, experts warn that these changes may have unintended ecological consequences
A compact CasMINI CRISPR system has been engineered for efficient gene regulation and editing in mammalian cells. The system, derived from the naturally occurring archaeal protein Cas12f, is highly specific and efficient, making it suitable for various therapeutic applications.
A new study proposes that protocells, the putative ancestors of modern living cells, used temperature differences to divide. This simple mechanism could underlie the growth and self-replication of these early cells.
A recent study has identified nearly half of the fastest-evolving human genes as playing a crucial role in rewriting the course of human brain development. The research used an innovative approach called CaptureMPRA to analyze the function of Human Accelerated Regions (HARs) in regulating gene expression in the brain.
A Swiss research team created a nanogenerator made from functionalized wood, generating 80 times more electricity than natural wood. The device can power household LED lamps and small electronic devices, demonstrating a potential sustainable energy source for smart buildings.
Researchers found that over a quarter of female white-necked Jacobin hummingbirds exhibit showy colors similar to males, aiding in evasion of aggressive behaviors during feeding and mating. This study suggests that the display of flashy colors is driven by social selection rather than sexual selection.
Researchers have helped fill gaps in the rhino evolutionary family tree by analyzing genomes of living and extinct species, finding that African and Eurasian lineages separated 16 million years ago and that low genetic diversity is a natural state for rhinoceroses, not a consequence of recent population declines
Researchers captured footage of a tortoise attacking and killing a tern chick on Frégate Island. The tortoise approached the chick with its jaws open, suggesting it was an experienced hunter. This unusual behavior challenges previous assumptions about tortoises' diets and hunting habits.
A global inventory reveals oil refineries emitted 1.3Gt CO2 in 2018, with potential emissions of 16.5Gt by 2030 if no mitigation strategies are adopted. Researchers recommend improving refinery efficiency and upgrading technologies to reduce emissions.
Researchers discover rattlesnakes' high-frequency rattle fools humans into thinking they're closer than they are, allowing for a 'distance safety margin'. The study suggests snakes evolved this smart signal to avoid being stepped on by large mammals.
Researchers found that auditory and speech processing occur in parallel, with areas of the STG responding as fast as the primary auditory cortex when sentences were played. This challenges the traditional hierarchy model of speech processing and may offer new insights into conditions like dyslexia.
Researchers generated brain organoids containing functional optic cups from human induced pluripotent stem cells (iPSCs), demonstrating intrinsic self-patterning ability. The optic cups exhibited light sensitivity, diverse retinal cell types, and connectivity to brain regions.
Researchers found Philippine Negrito ethnic group, Ayta Magbukon, possess the highest level of Denisovan ancestry in the world. Their Denisovan DNA is up to 46% greater than that of Australians and Papuans.
A study published in iScience found that apes purposefully use signals to start and end interactions, similar to human politeness. The researchers observed that the social dynamics between interacting apes affected the communication efforts used, with closer bonobo pairs showing shorter entry and exit phases.
A clean US hydrogen economy is achievable but requires a comprehensive strategy and infrastructure development. The US needs to consider the production, transport, storage, use, and economic viability of hydrogen to make it viable on a societal scale.
Researchers in Japan have created a method to preserve mouse sperm by freeze-drying it on a plastic sheet, enabling easy transportation via postcard. The 'sperm book' stored at -30°C, can hold thousands of sperm samples, and the mailing method has shown promising results with high offspring rates.
A new study generated 137 whole-genome sequences from eight Middle Eastern populations, filling a major gap in international genomic projects. The researchers found 4.8 million previously undiscovered genetic variants, which could hold medical relevance.
Researchers found that feeding bumble bees caffeine improves their ability to recognize specific flower odors and remember the location of nectar-rich flowers. However, this effect is short-lived, as the bees quickly adapt and lose their preference for caffeinated flowers.
Research suggests cats can help understand human genetic 'dark matter' and aid in precision medicine for genetic diseases like polycystic kidney disease. By studying the cat genome, scientists may uncover new insights into human genetics and develop more targeted treatments.
A recent study found that meeting the Paris Agreement's 2°C target will increase net energy sector jobs globally by about 8 million by 2050. The majority of these new jobs will be in the solar and wind industries, while fossil fuel extraction jobs are expected to decline rapidly.
Researchers developed a new index to track tropical forest vulnerability using satellite data, revealing regions at risk due to climate change and land use pressures. The Tropical Forest Vulnerability Index (TFVI) provides early warnings for conservation efforts.
Scientists developed a hydrogel composite with zirconium-based metal-organic frameworks that rapidly breaks down organophosphate-based nerve agents. The composite shows high catalytic activity and maintains its effectiveness even after storage.
Researchers have developed a new, efficient on-body energy harvester that produces 300 millijoules of energy per square centimeter without mechanical input. The device is powered by lactate in sweat and can be worn on the finger, making it suitable for self-sustainable wearable electronics.
A single dose of the Sputnik V vaccine elicits significant antibody responses against SARS-CoV-2, with 94% of participants developing IgG antibodies within three weeks. Previously infected individuals show higher antibody levels after one dose compared to fully vaccinated volunteers.
Agricultural economist Thomas Daum argues that farm robots could lead to a utopian future with rich fields, diverse crops, and conservation of biodiversity. In contrast, large, tractor-like robots could result in a dystopian scenario with environmental degradation.
During their marathon flights, great snipes change elevation depending on time of day, typically flying higher in daylight to escape heat and finding a behavior that's optimal for them. They reach astonishing altitudes, with one bird flying as high as 8,700 meters, nearly as high as Mount Everest.
Researchers found a new family of beetles, Triamyxa coprolithica, with legs and antennae intact in a fossilized droppings sample from the Triassic period. The discovery offers a new alternative to amber fossils for studying insect evolution and food webs.
Scientists discovered the oldest strain of Yersinia pestis in a 20- to 30-year-old man from 5,000 years ago. The ancient bacteria was less contagious and deadly than its medieval version, transmitted primarily through animal bites. This finding challenges long-held theories on the development of human civilization in Europe and Asia.
A newly discovered human species named Homo longi, or "Dragon Man", is redefining the history of human evolution. With a brain size comparable to modern humans and primitive features, the Harbin cranium suggests that Homo longi may have interacted with Homo sapiens in Asia.
Researchers found multiple dinosaur species that reproduced in Arctic, including hadrosaurids, ceratopsians, and tyrannosaurs. The discovery provides evidence of year-round residency by dinosaurs in extremely cold environments.
A meta-analysis of 22 studies found that consumers are willing to pay a premium price for ecolabeled coffee, with an average increase of $1.36 per pound. The study also revealed that Organic ecolabeling has the highest value, followed by Fairtrade and COOL.
Coelacanths have been found to live up to 84 years old and take over five years to gestate their offspring. Their slow life history makes them vulnerable to conservation threats, with the African coelacanth assessed as critically endangered.
Scientists have developed an inexpensive transparent coating that can capture airborne aerosol droplets, reducing the spread of respiratory diseases. The coating, made from common cosmetic ingredients, was tested on various surfaces and found to trap nearly all incoming aerosols.
Researchers found that even with a small number of gravitational wave events, small modeling errors can accumulate and lead to misleading deviations from general relativity. This highlights the importance of considering theoretical model errors when testing Einstein's theory.
The NIH has launched the UNITE initiative to address structural racism in biomedicine, focusing on increasing diversity and inclusion. The initiative aims to tackle issues such as lack of representation from underrepresented racial and ethnic groups, persistent disparities in grant success rates for Black scientists.
A large study found that COVID-19 vaccines induce a strong immune response in patients with various types of cancer, with high seroconversion rates among solid tumor patients. However, those receiving treatments for blood cancers had lower but still significant rates, highlighting the importance of vaccination in vulnerable populations.
Researchers found that neural replay of a newly learned skill occurred during waking rest periods, approximately 20 times faster than the actual behavior. Frequent replay events were associated with greater skill consolidation and improved performance.
Experts call for global regulation to prevent unproven stem cell treatments from putting patients' lives at risk. The authors propose establishing an advisory committee on regenerative medicine and promoting harmonization among regulatory standards.
Researchers found that Bdelloid rotifers can persist for at least 24,000 years in the Siberian permafrost and survive. The study suggests that these tiny animals have a mechanism to shield their cells and organs from harm at extremely low temperatures.
Researchers found that puppies demonstrate human-like social skills from a young age, with a strong genetic component. They can reciprocate human social gaze and use information given by humans in social contexts, even before extensive experience with humans.
A study found that North Atlantic right whales are significantly shorter today than they were 30-40 years ago, with average length decline of 7%. The researchers suggest that severe entanglements in fishing gear may be the main cause of this decline.
Scientists create hydrobot, a small water droplet manipulated by magnetic beads, for various applications. Hydrobot can move with precision and even stop at random, making it suitable for dust collection and surface cleaning.