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全球二氧化碳排放量持续增长
2023-12-06Global emissions of carbon dioxide (CO2) -- the main cause of global warming -- increased by 3% last year, reaching an all-time high of 34 billion ton...
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睡眠剥夺能缓解创伤后精神紧张
2023-12-06Sleep deprivation in the first few hours after exposure to a significantly stressful threat actually reduces the risk of Post-Traumatic Stress Disorde...
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科学家使工蜂生产加强型蜂王浆
2023-12-06Scientists have discovered a way to make worker bees produce an enhanced version of royal jelly(蜂王浆) (RJ) -- the super-nutritious substance that dicta...
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黑猩猩会挑选重量合适的工具砸坚果
2023-12-06Chimpanzees use weight to pick the best tool, and monkeys beg more when they're paid attention to, as reported in two independent research reports...
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穴居人手臂形态受刮擦活动影响
2023-12-06Unique arm morphology(形态学) in Neandertals was likely caused by scraping activities such as hide preparation, not spear thrusting as previously theoriz...
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玛雅人曾修建大型水坝
2023-12-06Recent excavations, sediment coring and mapping by a multi-university team led by the University of Cincinnati at the pre-Columbian city of Tikal, a p...
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蛙叫启发出新无线网络算法
2023-12-06Males of the Japanese tree frog have learnt not to use their calls at the same time so that the females can distinguish between them. Scientists at th...
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维生素E能降低患肝癌几率
2023-12-06High consumption of vitamin E either from diet or vitamin supplements may lower the risk of liver cancer, according to a study published July 17 in th...
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德国科学家制造出世界最轻材料
2023-12-06A network of porous(多孔渗水的) carbon tubes that is three-dimensionally interwoven(互相编织) at nano and micro level -- this is the lightest material in the w...
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气候变暖对湖泊有不良影响
2023-12-06Global warming also affects lakes. Based on the example of Lake Zurich, researchers from the University of Zurich demonstrate that there is insufficie...