2025-03-16 03:42:58动物植物
研究呼吁增加研究资金以维持美国农业

Climate change and flagging investment in research and development has U.S. agriculture facing its first productivity slowdown in decades. A new study estimates the public sector investment needed to reverse course.

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2025-03-16 03:31:45动物植物
考古学家在西欧发现了已知最古老的人类祖先部分面部化石

A fossil of a partial face from a human ancestor is the oldest in western Europe, archaeologists reported Wednesday.

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2025-03-16 03:19:06动物植物
科学家解释叶绿体中的能量传递机制及其进化

A recent study by Chinese scientists has revealed the intricate molecular machinery driving energy exchange within chloroplasts, shedding light on a key event in the evolution of plant life. Led by Fan Minrui from the Center for Excellence in Molecular Pl

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2025-03-16 03:04:37动物植物
紫外线辐射如何触发细胞救援任务

Ultraviolet (UV) radiation from the sun is a well-known cause of DNA damage, which can lead to diseases like skin cancer. But how do our cells repair this damage to protect us? Researchers from Sabanci University, Veysel Oğulcan Kaya and Ogün Adebali, hav

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2025-03-16 02:53:22动物植物
研究表明,杀虫剂对大黄蜂大脑的作用取决于剂量和时间

Pesticides, widely used to protect crops from pests, often unintentionally harm pollinators like bumble bees. A new study, published in BMC Biology, has investigated the effects of three common pesticides—acetamiprid, clothianidin, and sulfoxaflor—on the

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2025-03-16 02:42:13动物植物
中国发现二叠纪末大灭绝时期的陆地“生命绿洲”

A new study reveals that a region in China's Turpan-Hami Basin served as a refugium, or "life oasis," for terrestrial plants during the end-Permian mass extinction, the most severe biological crisis since the Cambrian period.

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2025-03-16 02:31:14动物植物
研究发现,某些突变会破坏基于触摸的学习

You may scarcely notice it, but much of what you do every day requires your brain to engage in perceptual learning. To safely cross an intersection or quickly retrieve something from your bag, you depend upon your brain to first assign meaning to sensory

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2025-03-16 02:17:04动物植物
科学家们创造了一种设计能够结合和感知一系列小分子的蛋白质的方法

From growth hormones to cancer drugs, small molecules play a crucial role in our health. Monitoring them is essential to keeping us healthy; it enables physicians to calculate dosages and patients to monitor their medical conditions at home, for example.

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2025-03-16 02:02:46动物植物
允许成年人消化牛奶中糖分的东亚人类基因可能来自尼安德特人

A small team of computational and evolutionary biologists from the University of Chinese Academy of Sciences, Zhongshan Hospital and the Max Planck Institute for Evolutionary Anthropology, reports that unique lactase genes carried by about 25% of East Asi

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2025-03-16 01:49:57动物植物
超级计算机绘制修复受损DNA的分子蓝图

Sunburns and aging skin are obvious effects of exposure to harmful UV rays, tobacco smoke and other carcinogens. But the effects aren't just skin deep. Inside the body, DNA is literally being torn apart.

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2025-03-16 01:37:01动物植物
授粉者的漫长等待:研究发现,恢复的草原需要75年以上的时间才能完全恢复生物多样性

Recovered grasslands need more than 75 years of continuous management to regain their biodiversity because specialized pollinators are slow to return. Kobe University's finding underscores the importance of preserving old grasslands as reservoirs of biod

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2025-03-16 01:25:45动物植物
推进高粱科学:农业未来的抗旱作物

In a series of three recent studies, a team led by CSIC researcher at CRAG Ana I. Caño-Delgado has made significant progress in understanding the molecular mechanisms and improving the breeding of sorghum, the world's fifth most cultivated cereal, which

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