All Stories
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NeuroscienceBrain’s growth, networks unveiled in new maps
Two large-scale efforts describe human and mouse brains in detail.
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NeuroscienceLost sleep could mean lost neurons
A new study shows we may not be able to make up for chronic sleep deprivation. The protein SirT3 might protect us against late nights, but all-nighters may produce neuron loss.
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Health & MedicineStatins may improve erectile function
Although doctors had been concerned that statins were associated with erectile dysfunction, an analysis of 14 studies finds that the drugs may actually help erectile function.
By Nathan Seppa -
CosmologyMaybe time’s arrow needs ergodicity as well as entropy
Explaining the arrow of time might require an equilibrium universe with hidden ergodic dynamics.
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Health & MedicineCeliac disease linked to heart problems
Inflammation may explain the link between celiac disease, a digestive disorder, and coronary artery disease.
By Nathan Seppa -
PaleontologySea stars sighted predators 79 million years ago
Sea stars may have evolved complex lenselike structures to detect and evade predators at least 79 million years ago.
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Science & SocietyMisconduct found in Japanese stem cell research
An investigation into reports describing a type of stem cells called STAP cells has found that the lead researcher is guilty of scientific misconduct.
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GeneticsNeandertal legacy written in Europeans’ fat metabolism
DNA inherited from Neandertal interbreeding may have helped people adjust to Europe’s environment.
By Meghan Rosen -
AnimalsZebra stripes may be mainly defense against flies
The function of zebra stripes may not be for camouflage or cooling, a new analysis finds.
By Susan Milius -
ClimateWorld unprepared for changing climate, IPCC says
The latest intergovernmental report says planetwide impacts continue.
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ArchaeologyBlack Death grave reveals secrets of 14th century life
Skeletons dug up by London Crossrail excavations are giving scientists a more detailed look at the bubonic plague, or Black Death, of the 1300s.
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EarthEvolution of river systems
A river’s erosion downward and across a landscape is based on a variety of factors, including terrain steepness and the arrangement of tributaries.
By Sid Perkins