From Molecules to Organisms: Structures and Processes
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AnimalsWildlife forensics turns to eDNA
Environmental DNA, or eDNA, tells biologists what species have been around — even when they’re out of sight or have temporarily moved on.
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BrainWhen every face is a stranger’s face
Some people can’t recognize faces — any faces, even their mother’s. Scientists are working to understand this ‘face blindness’ and help those who suffer from it.
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AnimalsGene editing creates buff beagles
Scientists showed that a potentially useful new gene-editing tool can work in dogs. It created a pair of adorable, muscular puppies. But the goal is to use it for other research purposes.
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BrainScientists discover itch-busting cells
A study in mice finds the body has a special way of dealing with an itch that’s caused by a light touch. The results could lead to treatments for chronic itch.
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Health & MedicineSome air pollutants seep through skin
The skin is the body’s largest organ. And it can let in as much or more of certain air pollutants than enter through the lungs, a new study finds.
By Janet Raloff -
BrainMales and females respond to head hits differently
Men and women are playing sports equally — and getting concussions in comparable numbers. But how their brains respond may differ greatly.
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BrainNew light on brain science
A combination of physics, biology and engineering lets scientists use light to trigger actions by specific brain cells. Called optogenetics, this technology is shining new light on how the brain works.
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ChemistryThese bubbles treat wounds
New research shows bubble-powered drugs can travel upstream, against the flow of blood, to seal wounds shut.
By Meghan Rosen -
ChemistryTrio gets chemistry Nobel for figuring out DNA repair
Three researchers have won the 2015 Nobel Prize in chemistry for working out how cells fix damaged genetic material.
By Meghan Rosen and Sarah Schwartz -
Health & MedicineFriends’ good moods can be contagious
Good mental health spreads through teen social networks, but depression doesn’t, a new study finds.
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AnimalsHummingbird tongues may be tiny pumps
Scientists had thought that hummingbird tongues work through capillary action. A new study, though, concludes they work like little pumps.
By Susan Milius and Sarah Zielinski -
Health & MedicineNew treatments may rally ex-president’s fight against cancer
Former President Jimmy Carter has a potentially lethal type of skin cancer that has already spread to his liver and brain. Recent improvements in medicine may help him fight it.