News
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Health & MedicineDrop in vaping drives tobacco product use by U.S. youth to a record low
The fewest number of U.S. middle and high school students are currently using tobacco products since the National Youth Tobacco Survey began in 1999.
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Health & MedicineMale mosquitoes sometimes suck, too
Blood isnât actually toxic to all male mosquitos. In at least one virus-carrying species, it may even help them live longer.
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Science & SocietyThe U.S. empire was built on bird dung
A mid-1850s act let the United States seize islands rich in bird guano. Those strategic outposts fueled the U.S. rise to power, a researcher says.
By Sujata Gupta -
AnimalsThe âMekong ghostâ megafish has resurfaced after an extinction scare
Rediscovery of giant salmon carp in Cambodia sparks hope for the rare fishâs survival and efforts to conserve one of the greatest diversity hot spots.
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LifeHow insects can help catch rhino poachers
A new study looks at which insects can be used as biological clocks to determine when a rhino was killed.
By Jude Coleman -
SpaceA near-Earth asteroid offers clues to one dark matter theory
Data from the OSIRIS-REx mission to Bennu place a ceiling on the strength of a hypothetical fifth force that could explain dark matterâs origins.
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AnimalsPolar bears are being exposed to more pathogens as the climate warms
Polar bears have been exposed to more viruses, bacteria and parasites in recent decades, a new study shows, possibly acquiring the germs in their diet.
By Jake Buehler -
Health & MedicineA new implant tested in animals reverses drug overdoses
In pigs, the device detected overdoses and administered naloxone. It could also alert emergency services to respond.
By Anna Gibbs -
ArchaeologySilk Road cities reached surprising heights in Central Asiaâs mountains
Drones with lasers revealed hidden urban centers that may have aided trade and travel through mountainous regions during medieval times.
By Bruce Bower -
TechTech companies want small nuclear reactors. Hereâs how theyâd work
To fuel AIâs insatiable energy appetite, tech companies are going big on small nuclear reactors.
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SpaceJWST spots the first known âsteam worldâ
Astronomers have found a world shrouded in an atmosphere of water vapor, orbiting a star 100 light-years away.
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Health & MedicineOnce-weekly insulin might mean fewer shots for some with diabetes
Recent clinical trials of weekly insulin highlight how this formulation may be useful in managing diabetes, but the drug has limitations.