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EarthMore Waters Test Positive for Drugs
Traces of drugs, excreted by people and livestock, pollute surface and ground waters in the United States, as had already been confirmed in Europe.
By Janet Raloff -
PaleontologySalvaged DNA adds to Neandertals’ mystique
Researchers who isolated a sample of Neandertal mitochondrial DNA say that it provides no evidence that Neandertals contributed to modern human evolution.
By Bruce Bower -
ChemistryToxin in absinthe makes neurons run wild
The alpha-thujone in absinthe—Vincent Van Gogh's favorite drink—blocks brain receptors for a natural inhibitor of nerve impulses, causing brain cells to fire uncontrollably.
By Corinna Wu -
Lady-killing genes offer pest control
Two new fruit fly lines—with females that die on cue—could lead to changes in pest control.