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Bull sharks have a slight preference for spending time with their relatives, new research shows.

Common ravens are intelligent omnivores that regularly consume the eggs and young of nesting birds, and their populations are boosted by human-provided food and nesting resources. This has resulted in elevated predation by ravens on many sensitive prey species, including greater sage-grouse.

Even when the lights go out and nuclear reactors are turned off, the story inside the reactor core still has a great deal to tell. Radioactive, long-lived fission products continue to decay for months or even years, producing a faint flux of a specific type of particle known as antineutrinos. (Anti)neutrinos are the lightest and most elusive known particles in the universe, allowing them to escape unhindered from both the reactor and the surrounding shielding.

For the first time, researchers have discovered a new species of extinct amphibian from Ice Age Los Angeles at La Brea Tar Pits: a spadefoot toad they have named Spea labreae. Only one other extinct Pleistocene amphibian from North America has ever been found (a tree frog from Florida).

Scientists have uncovered a previously unknown natural process that dramatically increases the number of cloud-forming particles in the Arctic atmosphere—potentially altering cloud cover, sunlight reflection and future climate change.

When Northeastern University industrial engineering student Sierre Ternoey started her research position in Aachen, Germany, she was challenged to fix an issue that frustrates chemical engineers worldwide.

In a new study by the Center for Advanced Bioenergy and Bioproducts Innovation (CABBI), researchers evaluated oil sorghum lines in Nebraska and Illinois over two years to quantify genotype-by-environment effects on agronomic performance and triacylglycerol accumulation. The research is published in the Plant Biotechnology Journal.

When academic research has explored the impact of school summer vacations, it has often focused on the costs to parents and children's learning and health.

Some speed-reading advocates claim that with proper training (outlined in many popular books and YouTube videos) or the use of special apps, it's possible to increase your reading rate to 1,000 words per minute or more.

Narcissism is associated with selfishness and other negative traits like a grandiose sense of self-importance, a constant need for admiration and a lack of empathy for others. So it may not be surprising that narcissists tend to have a hard time with behaviors associated with better mental health and healthy relationships, like forgiveness. But a new study, published in the Journal of Behavior Therapy and Experimental Psychiatry, explores how people with a particular type of narcissism automatic

Australia's unique animal species are in sharp decline, with more than 40 mammal extinctions over the past 238 years. This atrocious mammal conservation record is the worst in the world.

A research team led by Professor Dong-Yeun Koh of the Department of Chemical and Biomolecular Engineering, in collaboration with Professor T. Alan Hatton's group at the Massachusetts Institute of Technology (MIT), developed an electrochemical dissolved ocean carbon removal (e-DOC) technology that converts carbon dioxide dissolved in seawater into calcium carbonate (CaCO₃), a stable mineral form that enables virtually permanent carbon storage.

A cat-training program for children with developmental disabilities fostered healthy behaviors in children, strengthened relationships between children and their family cats and improved cats' social behavior, a new study published in the journal Animals has found.

How readily a cell divides and how well it survives are fundamental to life, shaping everything from organ size to the body's ability to withstand disease. That combination, known as cell fitness, isn't the same for everyone. Differences in genetics and environment can tip the scales toward developmental disorders, tissue degeneration and cancer.

Modern photonic chips can pack sophisticated optical functions onto devices smaller than a fingernail. They are increasingly used to generate, manipulate and measure light for applications ranging from communications to sensing. But most of these chips rely on a single material to do the heavy lifting, limiting the range of optical effects they can produce.

Using a combination of laser cooling techniques and strong magnetic fields, researchers at Colorado State University have for the first time created an ultracold neutral plasma with electrons cooled to temperatures measured to be within one degree Kelvin.

Data released by the Sloan Digital Sky Survey (SDSS) marks a landmark expansion in the study of accreting supermassive black holes (SMBHs). As part of the fifth generation of the survey (SDSS-V), the Black Hole Mapper (BHM) program is providing unprecedented insights into the masses, growth and physics of quasars and active galactic nuclei (AGN) across cosmic time.

East Africa's shrinking mountain glaciers on three peaks in Kenya, Uganda and Tanzania will soon be no more. The 2025 State of the Climate in Africa report (page 13) estimates that the ice areas on Mount Kenya, the continent's second-highest peak, have shrunk 96% in the past 115 years. The ice cap will cease to exist in three to five years, says the report. Rainer Prinz, who studies climate-glacier relationships, explains the intricate processes behind the retreat and what the consequences will

A trove of recent articles bemoan the collapse in recreational reading among younger Americans, with COVID-related reading declines, artificial intelligence and social media often described as causes.

Smithsonian researchers have identified the genetic relationships among all Hawaiian honeycreeper species known to have existed—and subsequently faced major losses—since the arrival of Europeans to the islands.

University of British Columbia researchers have developed an edible, seaweed-derived coating that can keep strawberries fresh for at least four days at room temperature, outperforming uncoated berries stored in the refrigerator.

Economics shapes many aspects of our daily lives, from the prices we pay to the policies governments adopt. Yet many of the ideas taught as universal principles of economics emerged from a narrow historical context and have rarely been examined through a decolonial lens.

A team of scientists has announced the discovery of Erhaia dijiang, a species of eyeless freshwater cave snail.

The value of basic science in insect biology is no more evident than when a crisis arises involving a devastating insect pest like the New World screwworm, says University of Illinois entomology professor May Berenbaum. In a 2016 essay in the journal Science, Berenbaum wrote about the successful—if temporary—eradication of the pest in many parts of the world. Here she answers common questions about the screwworm's return.

Our DNA is often pictured as a simple spiral, like a piece of rope held taut. But inside cells, it folds into a complex three-dimensional structure, with 2 meters (6.6 feet) of DNA scrunched like a headphone wire in a pocket. This bundled architecture plays a crucial role in how genes are switched on and off. Understanding these interactions is key to interpreting genetic studies of disease and can help develop targeted treatments.

Vegetable oils serve as critical feedstocks for biofuels and bioproducts by providing energy-dense hydrocarbon molecules. Some plants have evolved divergent enzyme sets to produce high-value unusual fatty acids with novel chain lengths or functional groups.

The last time you had a cold sore, you might have fretted about how long it would hang around. Perhaps you avoided reflective surfaces. It's unlikely you worried about dying from it.

Can a crack be supersonic? Can the fracture that triggers an avalanche propagate faster than the limiting velocity predicted by classical fracture mechanics? The question remains the subject of debate within the scientific community. While some numerical and experimental studies suggest that avalanche cracks may propagate at supersonic speeds, others offer a different interpretation.

A flowering plant has been confirmed as a new carnivorous lineage, according to research published in Nature Communications. The findings show that Saxifraga candelabrum can attract, trap, digest and absorb nitrogen from insects, supporting a prediction made by Charles Darwin more than 150 years ago.

The power of social influence could be key to changing attitudes and behaviors around climate change, according to a new study by researchers at the Center for Climate Change and Social Transformations (CAST). The team examined the role of social influence in accelerating climate action, outlining how celebrities, athletes, health care workers, religious leaders, hairdressers, small business owners, family, friends, neighbors and colleagues all have the ability to influence climate action.

Venus may be overwhelmingly inhospitable today, but many planetary scientists believe that it wasn't always this way. Billions of years ago, some observational evidence suggested that our planetary neighbor may have looked far more like Earth, complete with oceans potentially capable of harboring life.

Wildfires are burning in North America and Europe. Deadly heat waves have parked over cities and the world's oceans are the hottest ever recorded for this time of year. A strengthening El Niño is forecast to be off-the-charts, spiking global temperatures and warping weather all over.

Seed dispersal through wind, water or animals is a crucial process for forest renewal and biodiversity preservation. In the Atlantic Forest, a new study showed that the amount of forest in the landscape surrounding an area and the amount of rain are the main factors responsible for ensuring seed richness and diversity. In practical terms, the research revealed that a small patch of forest with adjacent green areas is more capable of regenerating itself than a huge but isolated fragment amid a de

Research in the International Journal of Materials and Product Technology describes a metal-free dye-fixing process that could help make natural plant dyes more practical for high-performance textiles, addressing a longstanding obstacle to their wider use in sustainable clothing.

The space around Earth is becoming increasingly crowded, with thousands of satellites and pieces of debris now sharing low Earth orbit. Even above this region—at altitudes of several hundred kilometers—the extremely thin upper atmosphere can slow satellites, making accurate information on atmospheric density essential for predicting satellite motion and preventing collisions.

Wastewater treatment is a critical issue for global environmental protection and public health. Researchers from The Hong Kong University of Science and Technology (HKUST) have recently achieved a major breakthrough with the discovery of a novel oxidant-free electrocatalytic mechanism, opening a new direction for water purification technologies. The findings are set to significantly improve pollutant identification efficiency and potentially double the economic feasibility compared with existing

A research team led by Kazuyoshi Murata has discovered that virus-like particles (VLPs) of human norovirus genotype GII.3 are not structurally rigid, but can adopt two distinct conformational states, similar to those previously reported for murine norovirus.

Sudden, hard-to-explain market gyrations involving billions of dollars are often triggered by a lack of transparency, new academic research suggests.

Nearly two centuries of maize-based agriculture in the U.S. Midwest has halved soil organic carbon (SOC) stocks compared with tallgrass prairies native to the region. Replacing annual maize/soy cropping with perennial bioenergy grasses may partially reverse these resulting SOC deficits.

A study published in the Journal of Political Economy provides the first causal evidence that improving sleep can directly enhance academic performance.

A research team led by professor Yousung Jung from the Department of Chemical and Biological Engineering at Seoul National University College of Engineering has developed a new catalyst design principle that suppresses the hydrogen evolution reaction, which interferes with ammonia production, while maintaining the nitrogen reduction reaction that produces ammonia.

Guatemala remained on alert Tuesday after evacuating villages during an eruption of the Fuego volcano, one of Central America's most active.

Suddenly, the world is plunged into an eerie, violet darkness. The temperature drops. Birds and other animals, bewildered by unforeseen night, start behaving strangely. Stars and planets appear in the sky next to the blotted-out sun.

In the late 1990s, Malaysia created a new way for corporations to raise money by issuing bonds that comply with Islamic law, which prohibits the payment or collection of interest.

A study by La Trobe University researchers has found annual ryegrass, the most damaging weed in Australian grain systems, can adjust its growth and reproduction to survive under drought stress, making it potentially harder to manage as climate conditions become more variable.

Australia is now confronting an outbreak of a deadly bird flu strain. As of Monday, the highly pathogenic H5N1 virus had been detected in 78 wild birds across mainland Australia. Until now, there had been no evidence of a large-scale outbreak.

The deadly H5N1 strain of bird flu has now spread from migratory birds to infect resident Australian birds. Clusters of dead birds have been found in several locations. The virus will inevitably infect other wildlife, most notably mammals.

The effects of climate change extend far beyond rising temperatures. As forests and other vegetation respond to a warming world, they also change the amount of biogenic emissions released into the atmosphere, influencing the formation of ozone (O3) and fine particulate pollution. Yet many atmospheric chemistry models still estimate these emissions using vegetation data from 2003, despite major ecological changes across East Asia over the past two decades.

A new study suggests the sounds around us have a significant impact on how we feel about physical spaces, with natural sounds—such as birdsong—associated with a greater sense of attachment to a given place. The study draws on data from a large-scale participatory science project involving more than 1,000 citizen scientists.

Researchers from Skoltech, SberUniversity, the M.N. Mikheev Institute of Metal Physics of UB RAS and Ural Federal University have published a review of a novel approach to interpreting chemical bonding in solids. The method not only describes crystals in terms of precise calculations but also enables chemists to reclaim explanatory models that are intuitively meaningful to them. The insights that emerge span long-documented anomalies that previously lacked a theoretical account.