News
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AstronomyMilky Way gets a new layer
Astronomers propose that 150 billion corpses of sunlike stars may blanket the visible disk of the galaxy.
By Ron Cowen -
AnimalsBees log flight distances, train with maps
After decades of work, scientists crack two problems of how bees navigate: reading bee odometers and mapping training flights.
By Susan Milius -
EarthDDT treatment turns male fish into mothers
Injecting into fish eggs an estrogen-mimicking form of the pesticide DDT transforms genetically male medaka fish into apparent females able to lay eggs that produce young.
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Health & MedicineNovel diabetes strain has rapid onset
Japanese researchers have confirmed that some patients with type 1 diabetes have a novel form of the disease that's not caused by immune cells attacking the pancreas.
By Nathan Seppa -
PhysicsBlack hole recipe: Slow light, swirl atoms
Whirling clouds of atoms may swallow light the way black holes do, possibly giving scientists a way to test the general theory of relativity in the lab, not just in outer space.
By Peter Weiss -
AnthropologyAncient populations were game for growth
Archaeological evidence of a Stone Age shift in dietary preferences, from slow to swift small game, suggests that the human population rose sharply sometime between 100,000 and 50,000 years ago.
By Bruce Bower -
AnthropologyDrowned land holds clue to first Americans
A map of a now-flooded region charts the path that Asians may have taken to first reach the Americas.
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HumansTreaty Nears on Gene-Altered Exports
In an effort to help preserve biodiversity, negotiators from 130 nations crafted rules of conduct for international trade in living, genetically engineered organisms.
By Janet Raloff -
AnimalsSlithering on Air: Flying snakes glide through the treetops
The paradise tree snake flies by flattening its body and slithering through the air.
By Kristin Cobb -
Health & MedicineNew Antidote to Botulism: Drug neutralizes toxin in mouse tests
An experimental drug disables deadly botulism toxin much better than current treatment does.
By Nathan Seppa -
EarthLong, Dry Spells: Lengthy droughts tied to long-lived La Niñas
A new study of persistent droughts that occurred in the United States during the past 3 centuries suggests that those dry spells may be associated with prolonged periods when sea-surface temperatures in the central Pacific were cooler than average.
By Sid Perkins -
AnimalsStrong Medicine: Over-the-counter remedy snags snakes
Acetaminophen—the active ingredient in Tylenol—vanquishes brown tree snakes, the bane of Guam.
By Janet Raloff