News
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AnimalsThe ‘ratpocalypse’ isn’t nigh, according to service call data
A new study shows that rat-related reports in New York City went down during COVID-19 lockdowns compared with previous years during March and April.
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Health & MedicineRemdesivir may work even better against COVID-19 than we thought
Gilead Sciences says remdesivir cuts the chances of dying from the coronavirus, and data show the drug can curb the virus’s growth in cells and mice.
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ArchaeologyThis 1.4-million-year-old hand ax adds to Homo erectus’ known toolkit
A newly described East African find, among the oldest bone tools found, shows the ancient hominids crafted a range of simple and more complex tools.
By Bruce Bower -
GeneticsA bacterial toxin enables the first mitochondrial gene editor
Researchers have engineered a protein from bacteria that kills other microbes to change DNA in a previously inaccessible part of the cell.
By Jack J. Lee -
PhysicsThe universe might have a fundamental clock that ticks very, very fast
A theoretical study could help physicists searching for a theory of quantum gravity.
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Health & MedicineThese cells slow an immune response. Derailing them could help fight tumors
Immune therapies don’t work for a lot of cancer patients. Some researchers are enhancing these treatments with drugs that stymie suppressor cells.
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Health & MedicineA COVID-19 vaccine may come soon. Will the blistering pace backfire?
Speed is essential, but not at the expense of safety and efficacy, experts warn. Sacrificing either could damage public trust.
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NeuroscienceBoosting a liver protein may mimic the brain benefits of exercise
Finding that liver-made proteins influence the brain may advance the quest for an “exercise pill” that can deliver the benefits of physical activity.
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Science & SocietyThere’s little evidence showing which police reforms work
When stories of police violence against civilians capture public attention, reforms follow despite a dearth of hard data quantifying their impact.
By Sujata Gupta -
PhysicsPhysicists have ‘braided’ strange quasiparticles called anyons
All known particles fall into two classes. Physicists just found new evidence of a third class in 2-D materials.
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AnimalsCalculating a dog’s age in human years is harder than you think
People generally convert a dog’s age to human years by multiplying its age by seven. But a new study shows the math is way more complex.
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GeneticsSouth Americans may have traveled to Polynesia 800 years ago
DNA analyses suggest that Indigenous people from South America had a role in the early peopling of Polynesia.
By Bruce Bower