科学与环境
Elephants use medicinal plants to treat themselves, researchers find
African elephants use dozens of different medicinal plants to treat themselves and their families when they are sick, research reveals.
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商业与经济
Off sick? You need to phone your boss, back-to-work adviser says
Relying on text and email means sick workers disengaged and were less likely to work again, says Sir Charlie Mayfield.
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