News
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Health & MedicineThe salmon that went moo
People allergic to milk products could face potentially life-threatening risks by eating casein-treated fish.
By Janet Raloff -
Health & MedicineThis roe’s got a fish-E surprise
Scientists discovered a potent, new form of vitamin E, an antioxidant, in fish adapted for life in cold water.
By Janet Raloff -
Health & MedicineUSDA gives nod to irradiating meats
The federal government approved food irradiation, the only technology known to kill an especially lethal strain of bacteria, for use on raw meats.
By Janet Raloff -
MathLosing to win
Two games of chance, each guaranteed to give a player a predominance of losses in the long term, can add up to a winning outcome if the player alternates between the two games.
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MathSquares, primes, and proofs
Mathematicians have proved the so-called local Langlands correspondence, a broad generalization of a surprising connection between prime numbers and perfect squares.
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EarthAlgae Turn Fish into a Lethal Lunch
Scientists demonstrated that some marine mammals have died from eating fish tainted with a neurotoxic diatom.
By Janet Raloff -
EcosystemsFamine reveals incredible shrinking iguanas
Marine iguanas in the Galápagos Islands are the first vertebrates known to reduce their size during a food shortage and then regrow to their original body lengths.
By Susan Milius -
Blood cues sex choice for parasites
Malaria parasites shift their female-biased production of offspring toward a more evenly balanced sex ratio as an infection proceeds.
By John Travis -
PhysicsElectrical superball pulls itself together
A strong electric field can drive tiny particles of a superconductor to bind themselves together into a remarkably sturdy ball.
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Health & MedicineGlutamate glut linked to multiple sclerosis
The chemical glutamate can overwhelm nervous-system cells called oligodendrocytes, adding to the nerve damage caused by wayward immune cells in multiple sclerosis.
By Nathan Seppa -
The moon also rises—and assumes new sizes
The perplexing human tendency to perceive a moon on the horizon as larger than an elevated moon may arise from visual cues indicating that the horizon moon is located much farther away.
By Bruce Bower -
Materials ScienceTiny gems on steps find future in films
The discovery of diamond-crystal seeds on steps in silicon may lead to long-sought, large wafers of pure, single-crystal diamond for electronics and other uses.
By Peter Weiss