Researchers studying pharmaceutical pollution tracked salmon that had been exposed to anti-anxiety medication. The fish appeared to lose their inhibitions.
βWe know a lot from laboratory studies that drugs can change animal behavior, but how that plays out in natural ecosystems is very hard to forecast,β one researcher said.
The hydropower dam, in quake-prone Tibet, is set to be the worldβs biggest. But China has said little about the project, which could affect nearby countries.
A winter storm that hit the Atlanta, Georgia, area on Tuesday forced drivers to spend the night in their cars as they were trapped in the dangerous, icy conditions.
The authorities said they were struggling to understand the motives behind ramming a car into a Christmas market in the eastern city of Magdeburg, which left a 9-year-old boy among the five dead.
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