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LifeHow the snake got its fangs
A study of snake embryos suggests that fangs evolved once, then moved around in the head to give today’s snakes a variety of bites.
By Amy Maxmen -
Health & MedicineCalcium’s possible role in Alzheimer’s
A new study in mice finds that plaques associated with Alzheimer’s wreak havoc on calcium’s role in cell signaling.
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PaleontologySoft tissue in fossils still mysterious
New research suggests modern biofilms could contaminate ancient fossils.
By Sid Perkins -
Health & MedicineTo catch a cheat
Drug test cheaters find quick fixes on the Web, but toxicologists aren’t so easily fooled.
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LifeNature’s chronic boozers
Tree shrews pub-crawl nightly from flower to flower for fermented palm nectar.
By Susan Milius -
Health & MedicineStatins versus dementia
Statins, developed to fight cholesterol, may also prevent some dementia, a study of older Hispanics finds.
By Nathan Seppa -
ComputingBuilding ‘The Matrix’
Simulating new materials could help in building them — but only quantum simulators could fully model reality. A team reports a first step in realizing quantum simulation.
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Health & MedicineA chink in flu’s armor
Finding the shape of a protein that enables the flu virus to replicate points to ways to combat the disease.
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EcosystemsNomadic ants hunt mushrooms
A species of ants not well understood surprises researchers with a nomadic lifestyle, roaming the rainforest on fungal forays.
By Susan Milius -
PsychologyCore calculations
Number words may serve as mental tools for expanding on basic, nonverbal numerical knowledge rather than as determinants of such knowledge.
By Bruce Bower -
HumansToddlers triumphant
In new studies, toddlers display dramatic advances in object recognition that may underlie verbal and symbolic achievements.
By Bruce Bower -
Health & MedicineProtein links metabolism and circadian rhythms
Scientists have known for ages that metabolism is tied to the body’s daily rhythms. Two new studies suggest how.