News
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MathTest decodes dolphins’ math skills
Dolphins could use mental math to locate prey in clouds of bubbles.
By Meghan Rosen -
Health & MedicineSperm analyzed, one by one
A close look at the sex cell’s DNA reveals basic molecular processes.
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SpaceBlack hole theory deepens lithium crisis
A new proposal suggests a potential new source of the element as astrophysicists try to explain why it’s in such short supply.
By Nadia Drake -
Health & MedicineEgg in tiny doses curbs allergy
Giving allergic kids minuscule bits of problem food and gradually increasing it over many months wipes out reactions in some, a study finds.
By Nathan Seppa -
EarthField test stashes climate-warming carbon in deep ocean
Strategically dumping the metal stimulates a bloom of microscopic creatures that carry the greenhouse gas to Davy Jones’s locker.
By Devin Powell -
HumansMideast violence goes way back
One-quarter of skulls excavated in troubled region display injuries from clubs or other weapons.
By Bruce Bower -
LifeStudy shows where identical twins part ways
By birth, genetic doubles are already using their DNA differently.
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HumansAfghanistan on 240 incidents a week
A computer simulation forecasts insurgent activity by analyzing U.S. military logs released on WikiLeaks.
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PhysicsHow to walk on water
Physicists use X-rays to probe how a fluid can support a person's weight.
By Devin Powell -
Health & MedicineWhite dental fillings may impair kids’ behavior
Effects seen only for fillings that used bis-GMA, a resin derived from bisphenol A.
By Janet Raloff -
LifeInsulin may be Big Antler hormone
Extra sensitivity to the hormone in certain developing tissues might give animals their oversized weapons and ornaments.
By Susan Milius -
LifeSkinny searchers keep fat ants full
By controlling movement out of an ant nest, researchers discover that ants weigh tubbiness in deciding who hunts for food.
By Meghan Rosen