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When some marine fish eventually adapted to life in fresh water, many also acquired a more elaborate way to hear, including middle ear bones that resemble those in humans. Two-thirds of freshwater species today rely on a specialized middle ear known as the Weberian apparatus. This group spans more than…
The network of tiny blood vessels within the eyes may offer powerful clues about a person’s risk of heart disease and how quickly their body is aging, according to new research from McMaster University and the Population Health Research Institute (PHRI), a joint institute of Hamilton Health Sciences and McMaster.…
A new study suggests that briefly changing the way people see their own bodies can make it easier to recall autobiographical memories, including some from early childhood. Published in Scientific Reports, part of the Nature journal group, the research is the first to show that adults can access early memories…
A research team led by Professor Emeritus Takuji Hoshino of Okayama University of Science (OUS) has successfully cultivated a new wine grape variety called “Muscat Shiragai.” The hybrid was produced by crossing the wild Shiraga grape, a species native only to the Takahashi River basin in Okayama Prefecture, with Muscat…
The human digestive system relies on two main kinds of macrophages, a type of specialized white blood cell, to maintain intestinal health. One group, the inflammatory macrophages, attacks harmful microbes, while the other, the non-inflammatory macrophages, repairs tissue and promotes healing. In Crohn’s disease (a chronic form of inflammatory bowel…
Researchers from the Faculty of Physics at the University of Warsaw, the Centre for New Technologies at the University of Warsaw, and Emory University (Atlanta, USA) have explored how atoms influence one another when interacting with light. Their study, published in Physical Review Letters, expands on existing models of this…
Higher exposure to artificial light at night was linked to heightened stress activity in the brain, inflammation in the arteries, and a greater likelihood of heart disease in a small study of adults in Boston. Researchers reported that light pollution at night appeared to influence cardiovascular health, suggesting it is…
A group of orcas in the Gulf of California has been filmed using remarkable skill to hunt young great white sharks, flipping them onto their backs to reach the nutrient-packed liver. The group, known as Moctezuma’s pod, may be exploiting shifts in ocean temperatures that have changed shark nursery zones.…
Scientists at the University of California, San Diego have come closer to understanding one of nature’s most fascinating abilities: the art of disguise. Octopuses, squids, cuttlefish, and their cephalopod relatives are masters of camouflage, able to instantly shift their skin color to blend into their surroundings. This extraordinary transformation is…
Scientists at Duke-NUS Medical School and partner institutions assembled one of the most complete single-cell maps of the developing human brain. The atlas identifies nearly every cell type, records their genetic signatures, and shows how these cells grow and interact. It also compares leading laboratory methods for producing high-quality neurons,…
Mitochondria are tiny structures inside cells that generate the energy required for the body to move, grow, and maintain health. Because energy needs change continuously, mitochondria must constantly fine-tune their activity to keep up. This adaptability depends in part on the nutrients available to the cell. Yet until recently, scientists…
For billions of years, bacteria have fought an unending battle with viruses, developing a wide range of survival strategies. Now, scientists say these age-old microbial defenses could inspire new antiviral tools for humans. Thomas Wood, a professor of chemical engineering at Penn State, and his team have uncovered a long-overlooked…
Bamboo-based tissue paper from China has become a popular option among consumers seeking eco-friendly products. Yet new research indicates that these bamboo paper goods may not be as sustainable as many believe. In fact, when compared with tissue produced in North America, some bamboo varieties may have a larger environmental…
The Sahara Desert is known as one of the driest places on Earth, receiving only about 3 inches of precipitation each year — roughly one-tenth of what falls in Chicago. However, new research from the University of Illinois Chicago (UIC) suggests that this could change dramatically within the next few…
Although we rarely notice from Earth, the Sun is continuously hurling enormous clouds of charged plasma into space. These events, known as coronal mass ejections (CMEs), often occur alongside sudden bursts of light called solar flares. When particularly strong, CMEs can stretch far enough to disturb Earth’s magnetic field, producing…
Scientists from the University of East Anglia and Oxford BioDynamics have created a highly accurate blood test capable of diagnosing Chronic Fatigue Syndrome, also known as Myalgic Encephalomyelitis (ME/CFS). The condition, which causes long-term and often debilitating exhaustion, affects millions of people around the world, including more than 400,000 individuals…
Alzheimer’s disease often throws a person’s daily patterns into disarray. Difficulty sleeping through the night, restless tossing, and frequent daytime naps are common early warning signs. In later stages, patients often experience “sundowning,” a period of increased confusion and agitation that tends to occur later in the day. These patterns…
Scientists have uncovered a breakthrough in the fight against a rare genetic condition that causes children to age much faster than normal. The discovery involves “longevity genes” found in people who live exceptionally long lives, often beyond 100 years. Researchers from the University of Bristol and IRCCS MultiMedica found that…
Over a few million years, the spider Dysdera tilosensis (a species found only in the Canary Islands) has accomplished something extraordinary: it has cut its genome size nearly in half while adapting to its island environment. Despite this dramatic reduction, the genome of this species is not only more compact…
Scientists at the University of California, Davis report the discovery of a previously unrecognized trapdoor spider that lives in California’s coastal sand dunes. The species, named Aptostichus ramirezae, is closely related to Aptostichus simus, which occurs along the shoreline from Monterey to Baja California, Mexico. Findings published in the journal…
Earth’s oceans hold extraordinary biodiversity, yet only a small portion of an estimated two million marine species have been formally identified and described. One of the biggest hurdles in ocean science is the lengthy delay — sometimes lasting decades — between when a species is first discovered and when it…
Two Irish scientists have created a groundbreaking method for recovering fingerprints from fired bullet casings — something long believed to be impossible. Dr. Eithne Dempsey and her former PhD student, Dr. Colm McKeever, from the Department of Chemistry at Maynooth University in Ireland, have designed a novel electrochemical process that…
Self-reported cognitive disability among U.S. adults increased from 5.3% to 7.4% over the past decade. Rates nearly doubled for younger adults ages 18 to 39. The steepest increases occurred among people with lower incomes and less education. American Indian and Alaska Native adults reported the highest overall rates. Researchers urge…
The question of whether spacetime truly exists should not be particularly controversial or even conceptually difficult once we understand what is meant by “spacetime,” “events,” and “instants.” Believing that spacetime is a real, physical entity is no more defensible than believing in the old idea of a celestial sphere. Both…
Astronomers have produced the first three-dimensional map of a planet outside our solar system, revealing distinct temperature regions, including one so hot that water vapor breaks apart. The findings appear in Nature Astronomy, published October 28, 2025. Led by researchers at the University of Maryland and Cornell University, the study…
High-order harmonic generation (HHG) is a process that transforms light into much higher frequencies, allowing scientists to explore areas of the electromagnetic spectrum that are otherwise difficult to reach. However, generating terahertz (THz) frequencies using HHG has remained a major obstacle because most materials are too symmetrical to support this…
“If we’re going to build a circular, sustainable economy, the chemical industry is a big, complex problem that we must address,” said Professor Erwin Reisner from Cambridge’s Yusuf Hamied Department of Chemistry, who led the research. “We’ve got to come up with ways to de-fossilize this important sector, which produces…
For most of Earth’s history, scientists have viewed the slow breakdown of silicate rocks as the planet’s main natural thermostat. In this process, rainwater absorbs carbon dioxide (CO2) from the air, lands on exposed rocks, and gradually dissolves them. The carbon and calcium released eventually flow into the oceans, where…
The arrival of oxygen in Earth’s atmosphere marked a defining moment in the planet’s history, transforming it into a world capable of supporting complex life. This major shift, known as the Great Oxidation Event (GOE), took place approximately 2.1 to 2.4 billion years ago. However, oxygenic photosynthesis — produced by…
Could everything we thought we knew about T. rex growth be wrong? A remarkably complete tyrannosaur skeleton has brought new clarity to one of paleontology’s longest debates: whether Nanotyrannus was its own species or merely a young Tyrannosaurus rex. The fossil comes from the famous “Dueling Dinosaurs” discovery in Montana,…
