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PsychologyAncient hominids grabbed early northern exposure
Newly recovered stone tools indicate that hominids lived in chilly northwestern Europe more than 800,000 years ago.
By Bruce Bower -
Health & MedicineProtein regulator shows promise against addiction
Elevating levels of a tiny molecule in rats’ brains blunted the animals’ cocaine use.
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ComputingMachine versus manhole
Computer scientists take on one of New York’s weirder quality-of-life issues: which will be the next to explode?
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LifeOcean acidification may make fish foolhardy
Rising carbon dioxide alters fish larvae’s sense of smell, which they use to avoid predators and find their way home.
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Health & MedicineVaccine for Marburg virus passes monkey test
Tests suggest that the lethal hemorrhagic virus can be stopped if countered soon after exposure.
By Nathan Seppa -
ClimateMethane releases in arctic seas could wreak devastation
Warming climate could lead to dead zones, acidification and shifts at the base of the ocean’s food chain.
By Sid Perkins -
TechWhat Jefferson was thinking
Imaging technology reveals a last-minute revision to the Declaration of Independence.
By Janet Raloff -
HumansBotox injections put a crease in emotional evaluations
By immobilizing a muscle needed for frowning, Botox injections may interfere with a person’s ability to assess others’ emotions.
By Bruce Bower -
LifeSaber-toothed cats strong-armed prey
Smilodon fatalis used strong forelimbs to pin victims, an analysis of fossils shows.
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Enzymes Exposed
Clearer views of the cell’s movers and shakers threaten a century-old mainstay of biology.