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Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.

“2024成都·欧洲文化季”专项活动“成都就是我的家——艾米莉·濑户的中国之旅”插画展在双流区美术馆开幕，40幅插画共绘中国成都和法国马赛的城市景观，展示文化交融的魅力。

Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...