Life
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We summarize the week's scientific breakthroughs every Thursday.
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Health & MedicineIn some cases, getting dengue may protect against Zika
A Zika outbreak in a Brazilian slum suggests that the timing of dengue infections may matter for protection against Zika.
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LifeEvolutionarily, grandmas are good for grandkids — up to a point
Women may live past their reproductive years because they help their grandchildren survive, but there are limits to that benefit.
By Sujata Gupta -
PlantsShutdown aside, Joshua trees live an odd life
Growing only in the U.S. Southwest, wild Joshua trees evolved a rare, fussy pollination scheme.
By Susan Milius -
GeneticsWhat FamilyTreeDNA sharing genetic data with police means for you
Law enforcement can now use one company’s private DNA database to investigate rapes and murders.
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AnimalsHow black soldier fly larvae can demolish a pizza so fast
When gorging together, fly larvae create a living fountain that whooshes slowpokes up and away.
By Susan Milius -
GeneticsDNA from extinct red wolves lives on in some mysterious Texas coyotes
Mystery canids on Texas’ Galveston Island carry red wolf DNA, thought to be extinct in the wild for 40 years.
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GeneticsThis bacteria-fighting protein also induces sleep
A bacteria-fighting protein also lulls fruit flies to sleep, suggesting links between sleep and the immune system.
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AnimalsGiant pandas may have only recently switched to eating mostly bamboo
Giant pandas may have switched to an exclusive bamboo diet some 5,000 years ago, not 2 million years ago as previously thought.
By Jeremy Rehm -
NeuroscienceNo, we don’t know that gum disease causes Alzheimer’s
A recent study linked gum disease and Alzheimer’s disease, but the results are far from conclusive.
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AnimalsScientists name 66 species as potential biodiversity threats to EU
North America’s fox squirrel, the venomous striped eel catfish and 64 other species are now considered invasive in the European Union.
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PlantsHow light-farming chloroplasts morph into defensive warriors
Researchers now know which protein triggers light-harvesting plant chloroplasts to turn into cell defenders when a pathogen attacks.
By Jeremy Rehm -
Health & MedicineReaders have questions about Parkinson’s disease, moth wings and more
Readers had questions about Parkinson’s disease, the new definition of a kilogram’s mass, Saturn’s moon Dione and more.