News
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AnthropologyThe way hunter-gatherers share food shows how cooperation evolved
Camp customs override selfishness and generosity when foragers divvy up food, a study of East Africa’s Hazda hunter-gatherers shows.
By Bruce Bower -
Health & MedicineDrug overdose deaths in America are rising exponentially
Tracking rising numbers of deaths from a variety of drugs over the past 38 years shows that it isn’t just an opioid problem.
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PaleontologyCholesterol traces suggest these mysterious fossils were animals, not fungi
Traces of cholesterol still clinging to a group of enigmatic Ediacaran fossils suggests the weird critters were animals, not fungi or lichen.
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LifeHumans have skeletal stem cells that help bones and cartilage grow
Human skeletal stem cells have been found for the first time.
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LifeDNA from seized elephant ivory unmasks 3 big trafficking cartels in Africa
Scientists can sleuth out wildlife crime and aid law enforcement by tracing elephant DNA from ivory seizures back to the source.
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Materials ScienceHigh-tech ‘skins’ turn everyday objects into robots
Robotic skins turn inanimate objects into multipurpose machines.
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NeuroscienceOver-the-hill cells may cause trouble in the aging brain
Killing dormant cells in the brains of mice staved off memory trouble.
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Health & MedicineDaily low-dose aspirin is not a panacea for the elderly
Healthy elderly adults don’t benefit from a daily dose of aspirin, according to results from a large-scale clinical trial.
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Health & MedicineHere’s how many U.S. kids are vaping marijuana
A new study suggests that nearly 1 in 11 middle and high school students in the United States has vaped marijuana, raising concerns about addiction.
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PhysicsNuclear pasta in neutron stars may be the strongest material in the universe
Simulations suggest that the theoretical substance known as nuclear pasta is 10 billion times as strong as steel.
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ClimateHere’s how climate change is fueling Hurricane Florence
Scientists take a stab at predicting climate change’s influence on Hurricane Florence.
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EarthA new map reveals the causes of forest loss worldwide
A new study shows where global forest loss is due to permanent deforestation versus short-term shifts in land use.