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Phys.org / River wildlife moves freely once dams are removed, but so too can invasive species
Almost a quarter of all freshwater species are threatened with extinction. The removal of human-made barriers from rivers, such as dams and weirs, is a popular way to restore water flow and sediment transport to its natural ...
Medical Xpress / Fasting after 60 changes more than waistlines, exposing a trade-off many dieters never see coming
Most folks know intermittent fasting helps with weight loss, usually by limiting your daily eating window or cutting calories a couple of times a week. But does your age change how well this works for you—and might there ...
Phys.org / Quantum circuits help AI overcome memory limitations with minimal new parameters
For millions of people, chatbots powered by large language models (LLMs) are now a key feature of everyday life. These AI systems are growing at a rapid pace, but scaling them up is becoming increasingly costly and resource-intensive.
Phys.org / Ancient hominins selected basalt sources for specific tools nearly 800,000 years ago, study reveals
A new study finds that ancient hominins nearly 800,000 years ago deliberately selected specific basalt sources for different stages of tool production rather than simply using whatever stone was available nearby. By tracing ...
Phys.org / Koala population crash came before humans, genomic study reveals
A genomic study has reshaped our understanding of the evolutionary history of the koala (Phascolarctos cinereus), revealing the iconic Australian marsupial experienced a severe population decline around 100,000 years ago, ...
Phys.org / NASA unveils Artemis III astronauts to test technology for a future moon landing
NASA on Tuesday revealed the crew for its Artemis III mission, the next step in the space agency's plan to eventually land astronauts on the moon.
Phys.org / The fifth national climate assessment: Report shows change is here, but there is hope
The Fifth National Climate Assessment was released this morning, with dire messaging around the need for the immediate reduction of greenhouse gas emissions—but also hope, with advances in technology and increased adoption ...
Medical Xpress / Autism may have two distinct subtypes based on brain connectivity patterns
Autism spectrum disorder (ASD), commonly referred to as autism, is a neurodevelopmental condition characterized by differences in social interactions, communication, behavior and the processing of sensory stimuli. Notably, ...
Phys.org / 50 years of data reveals true extent of climate change impacts on kelp forests
New research from the University of Victoria (UVic) has found that some kelp forests around Vancouver Island were disappearing far earlier than scientists previously thought, highlighting that climate change has been altering ...
Phys.org / Astronomers discover the earliest known flickering quasar
A supermassive black hole lies at the heart of every galaxy, including the Milky Way. When a black hole is active, it pulls material in as a whirlpool of high-temperature gas and dust. As this cosmic material piles up and ...
Medical Xpress / New Lassa fever vaccine shows promising results for first-in-human clinical trial
Researchers at the University of Maryland School of Medicine's Center for Vaccine Development and Global Health, or CVD, report encouraging results from an early clinical trial that tested a new dual vaccine against Lassa ...
Medical Xpress / Novel genetic links for anxiety symptoms uncovered in largest study to date
A study led by researchers at King's College London and QIMR Berghofer Medical Research Institute has analyzed genetic data on anxiety symptoms in 693,869 people of European ancestry, revealing new insights into the genetic ...
