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Phys.org / Chimpanzees give youngsters the tools to learn tricky techniques
Two-thirds of a century after Jane Goodall observed "David Greybeard" break off a twig to fashion a fishing rod for termites, researchers following in her footsteps have found that adult chimpanzees in Senegal literally hand ...
Phys.org / Well-preserved tooth from Pacific mastodon found in a creek in San Francisco Bay Area
Brigid Lynch was working along a wooded creek in a mountainous part of the San Francisco Bay Area when something that didn't look like the rocks she'd been studying caught her eye. It turned out to be the fossilized tooth ...
Tech Xplore / AI imagines a harsher social world, expecting punishment where people expect inaction
Artificial intelligence (AI) systems, particularly the large language models (LLMs) that underpin ChatGPT and similar platforms, are remarkably skilled at answering queries about a wide range of topics. However, the extent ...
Phys.org / Speeding glaciers drive half a century of polar ice loss
The longest satellite record ever assembled shows that Greenland and Antarctica have lost 11.3 trillion metric tons of ice since the 1970s, raising global sea level by more than 3 centimeters (1.2 inches)—and that most of ...
Phys.org / A famous galaxy's black hole has been hiding its most violent behavior
Astronomers have found that a nearby galaxy's black hole is blasting out a far more powerful and hidden gas outflow than previously realized. Studying NGC 1068, a well-known galaxy with an actively feeding black hole at its ...
Medical Xpress / Epstein-Barr virus activity may foreshadow multiple sclerosis attacks
A new study illuminates the connection between the Epstein-Barr virus (EBV) and multiple sclerosis (MS), pointing to a causal role for reactivation of the virus in triggering MS attacks in people with certain genetic risk ...
Medical Xpress / From 7,000 drugs to one active against resistant strains: AI advances pneumonia drug repurposing
Streptococcus pneumoniae is a bacterial pathogen that causes life-threatening infections, including pneumonia and meningitis. These infections are commonly treated with antibiotics, but antibiotics are becoming less effective ...
Phys.org / For many group-living females, breeding and raising young are shared endeavors
Some female animals living in groups raise offspring that are not their own, sometimes without reproducing themselves. While the behavior of cooperatively breeding species is well documented, some aspects remain poorly understood.
Phys.org / New simulations link unusual particle diffusion to yielding in soft jammed matter
Soft materials such as colloidal suspensions, emulsions, foams and gels often display complex and unusual behaviors compared with ordinary solids or liquids. From a mechanical point of view, for instance, they can resist ...
Phys.org / Plasma and electricity convert CO₂ into methanol, butane and other useful chemicals
Carbon dioxide (CO₂) can be harmful to the environment in large amounts but can be used in the production of fuels and other useful chemicals. Doing so isn't easy, though. Now, Yale researchers have developed a new way to ...
Medical Xpress / Chromatin protein DAXX may help preserve brain immune cells during aging
As humans get older, their brains undergo various changes that can affect mental functions. The cells known to be affected by aging include microglia, the primary immune cells in the brain and spinal cord, which help eliminate ...
Phys.org / Rivers may be carrying more microplastics into the world's oceans than previously thought
Microplastics are a modern environmental menace and a potential threat to human health. These tiny pieces of plastic, measuring from 1 to 5,000 micrometers, come mainly from larger plastics as well as sources such as paints ...