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我们对甲壳虫的种类知之甚少
2023-12-06The tropics(热带地区) are home to an extraordinary diversity of insect species. How great is it, exactly? We do not know, but today, researchers at the Sa...
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进化是可以预见的
2023-12-06Understanding how and why diversification(多样化,变化) occurs is important for understanding why there are so many species on Earth. In a new study publish...
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水中合成的分子可能是生命的起源
2023-12-06The base pairs that hold together two pieces of RNA, the older cousin of DNA, are some of the most important molecular interactions in living cells. M...
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饮食中的抗氧化剂不能减少中风几率
2023-12-06Contrary to other research, a new study found that the total level of antioxidants in people's diets is not related to their risk of developing st...
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有机西红柿含更多维生素C与糖类
2023-12-06Tomatoes grown on organic farms accumulate higher concentrations of sugars, vitamin C and compounds associated with oxidative stress compared to those...
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短时间内蚊子能忍受避蚊胺的气味
2023-12-06Mosquitoes are able to ignore the smell of the insect repellent(杀虫剂) DEET within a few hours of being exposed to it, according to research published F...
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土地对保持生态环境健康有重要作用
2023-12-06While many people recognize that clean water and air are signs of a healthy ecosystem, most do not realize that a critical part of the environment is ...
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斯坦福科学家发现去除CO2新技术
2023-12-06In his Feb. 12 State of the Union address, President Obama singled out climate change as a top priority for his second administration. "We can ch...
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专家称转基因食品对健康无影响
2023-12-06It has been almost 20 years since the first genetically modified foods showed up in produce aisles throughout the United States and the rest of the wo...
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青少年时过多看电视会导致反社会行为
2023-12-06Children and adolescents who watch a lot of television are more likely to manifest antisocial and criminal behaviour when they become adults, accordin...