Mosquitos began biting humans more than a million years ago | An analysis of 38 modern mosquitoes’ DNA suggests an ancestral mosquito species developed a preference for feeding on early humans between 2.9 and 1.6 million years ago,

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The German firm supplies about three-quarters of the bone cement needed in the NHS. The product is used in more than 1,000 operations a week, mostly in knee replacements, but also in some hip and shoulder replacements.

Мир Российская Премьер-лига|19-й тур

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1986年出生的杜耀豪,在德国家中和母亲整理旧物时,发现一个塑料袋里,装着厚厚一叠旧相片和底片。光线穿过房间窗户,透过底片,映照出黑白灰人像,母亲惊喜地喊道:“这是我们小时候的照片,七兄弟姊妹!”

圖像來源,AFP via Getty Images

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