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Phys.org / Camera-tagged Adélie penguins caught eating sea snails in East Antarctica

There are many poorly understood links in the food web, often referred to as trophic relationships. Out in East Antarctica, a previously unconfirmed link between sea snails and Adélie penguins might reveal more than meets ...

18 hours ago
Phys.org / From teeth to thorns: Coincidences shape the universal form of nature's pointed tips

We thought it was evolution, but an experiment with pencils shows that tips like teeth and thorns may owe their rounded shape to mechanical wear. Most of us have been stung by a bee, bitten by an animal, or scratched by a ...

19 hours ago
Phys.org / Highway widening may be heating cities faster; here's what could curb it

U.S. cities are rapidly becoming urban heat islands, where these cities are significantly warmer than their surrounding area. Vast expanses of asphalt and concrete trap heat, while large, densely packed buildings disrupt ...

17 hours ago
Phys.org / Scientists discover f-block metals yield new oxygen-binding chemistry

Iron and oxygen bind together throughout the body. Most famously, iron binds dioxygen, or two oxygens paired with each other, in hemoglobin that transports oxygen through blood. But iron-oxo compounds, as they're called, ...

18 hours ago
Phys.org / Tropical trees are more neighborly than trees further from the equator, study finds

Tropical trees are better neighbors than trees in temperate forests, according to a study published in the journal Nature by researchers from 29 different institutions including the Smithsonian Tropical Research Institute ...

20 hours ago
Phys.org / How bromoform wrecks ozone: Ultrafast 'roaming' step captured in 150 femtoseconds

The halomethane compound bromoform (CHBr3) has devastating effects on the ozone layer. In the upper layers of the atmosphere, bromoform reacts with UV radiation, releasing bromine molecules which destroy ozone molecules. ...

18 hours ago
Medical Xpress / How a key memory center in the brain responds to the unexpected

The hippocampus is a crucial part of the brain that plays a role in memory and learning, especially in remembering directions and locations. New research from the University of Chicago shows how this small, curved structure ...

20 hours ago
Phys.org / AI chips could get faster with 30-nanometer embedded memory that cuts data shuttling

When we watch videos or ask AI questions, enormous amounts of data are constantly moving inside computers. In particular, data centers that support AI must process and transfer vast amounts of data at very high speeds. However, ...

21 hours ago
Tech Xplore / After Anthropic's Mythos AI uncovers thousands of zero-day bugs, top US officials huddle with bank CEOs

The heads of America's biggest banks met this week with Federal Reserve Chairman Jerome Powell and Treasury Secretary Scott Bessent to weigh the security implications of a new artificial intelligence system developed by Anthropic, ...

23 hours ago
Medical Xpress / Hippocampal pathways once thought separate converge to integrate 'where' and 'why' in reward processing

New research from the University of Maryland, Baltimore County (UMBC) reveals how two different parts of the brain's memory center team up in a key reward region to help mice—and likely humans—combine memories of places and ...

17 hours ago
Medical Xpress / Epigenetic changes at birth are associated with an infant's microbiome and neurodevelopment

The gut microbiome and epigenetics—molecular switches that turn genes on or off—are intertwined, and both contribute to neurodevelopment, finds a study published in Cell Press Blue. The researchers showed that epigenetic ...

23 hours ago
Phys.org / Rare Roman paint 'recipe' uncovered in Cartagena murals makes smart use of costly cinnabar

Roman painters commissioned at the end of the 1st century to decorate the walls of the Domus of Salvius in present-day Cartagena could hardly have imagined that their technical expertise would still attract attention twenty ...

21 hours ago