Humans
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EnvironmentDuring heat waves, trees spew chemicals that worsen air pollution
New data point to how heat waves and other climate change will make it harder to curb ozone and other types of toxic air pollution — even outside of cities.
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ArchaeologyKnotted strands of 500-year-old hair tell a surprising story
Used in a device called a khipu, the hair reveals the owner’s simple diet. Those data now suggest that in Incan society, even some commoners kept records.
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EcosystemsScientists Say: Transplant
Transplant means to move something from one place to another. A transplant can involve something as small as a cell or as large as a whole population.
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Health & MedicineSeeing sick faces revs up our immune system, new data show
It activates parts of the brain that detect threats and boosts the activity of at least one type of immune cell.
By Simon Makin -
HumansThese Korean women spend more time underwater than any other humans
At an average age of 70, these divers in South Korea still forage in the sea for up to 10 hours a day. They spend more than half of that time underwater.
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HumansForget droplets. Here’s how sweat really forms
This is the most detailed look yet at how we perspire. Beads of sweat are out, puddling is in.
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ArchaeologyThis may be the oldest, most complete Neandertal fingerprint ever seen
The print appears in a red ochre dot, which a Neandertal left on the ‘nose’ of a facelike rock roughly 43,000 years ago.
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TechGet a sneak peek at the tech you may use in the future
Holograms, 3-D printed clothing, personal robots — these technologies and more might one day transform your daily life.
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Health & MedicineSleeping in — but not too much — may ease anxiety
Getting up to two hours of weekend catch-up sleep lowers anxiety in teens, new research shows.
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Health & MedicineNew study links chemical in plastics to fatal heart disease
More than one in eight deaths from heart disease in older adults is being linked to DEHP. The plastic chemical appears to play a role in many other health issues, too.
By Skyler Ware and Janet Raloff -
HumansA real-life vampire probably couldn’t survive on blood alone
Vampires often have human bodies. To survive on blood, they’d need to shed millions of years of evolution.
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GeneticsDNA reveals the origin of East Asia’s favorite sweet bean
Where those red beans — also called adzuki — came from had been murky. A new study says it all started in Japan.
By Celina Zhao