All Stories
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Health & MedicineSchizophrenia risk gets more complex
Three studies find that large collections of variants, rather than just a few key mutations, probably predispose someone to schizophrenia.
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Psychology2-year-olds possess grammatical insights
Toddlers discern basic rules for using nouns and verbs at least one year before speaking in complete sentences, French brain researchers report.
By Bruce Bower -
Health & MedicinePlastics ingredients may shrink babies
A new study links phthalates, one of the more ubiquitous families of pollutants, with a baby being dangerously small at birth.
By Janet Raloff -
LifeSalamanders don’t regrow limbs from scratch
A closer look at regeneration in axolotl amputees shows that tissue replacement relies on cellular “memory.”
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PhysicsMass mismatch makes mystery for proton’s strange cousin
An exotic cousin of the proton is caught in action again. But its measured mass doesn’t match previous results.
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PaleontologyFlexible molars made chewing champions out of duck-billed dinosaurs
Tiny scratches in the fossilized teeth of Edmontosaurus suggest what these large herbivores ate and how they ate it.
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EarthHow killer whales are like people
Killer whales may be sentinels for toxic chemicals accumulating in even landlubbers.
By Janet Raloff -
LifeH1N1 racks up frequent flier miles
Analyzing global flight paths may help researchers track pandemics, as a new study on H1N1 shows.
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EarthDirty snow may bring green burst to mountain peaks
Dust blowing in from distant deserts speeds the melting of snow and may shake up ecosystems on the slopes.
By Susan Milius -
LifeProtein protects sperm in mice
A protein called GPX5 helps protect sperm from oxidative damage. The finding could help prevent birth defects.
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Health & MedicineRheumatoid arthritis drug clears hurdle
Anti-inflammatory injections of golimumab work in people with rheumatoid arthritis who failed to improve on other meds.
By Nathan Seppa