2025-05-15 23:49:29动物植物
一种能将珊瑚礁的沉积量提高20倍的墨水可以帮助重建全球珊瑚礁

With coral reefs in crisis due to climate change, scientists have engineered a bio-ink that could help promote coral larvae settlement and restore these underwater ecosystems before it's too late. In a paper published in Trends in Biotechnology, research

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2025-05-15 23:37:38动物植物
最早的爬行动物足迹改写了四足动物进化的时间线

New discoveries of fossil clawed footprints from Australia, published in Nature, push the origin of reptiles back in time by at least 35 million years and change the entire timeline for the origin of tetrapods (backboned land animals).

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2025-05-15 23:26:35动物植物
狗疫苗接种的零散地理覆盖是消除狂犬病的关键障碍

Dog vaccination programs are a highly effective way to control and, ultimately, eliminate rabies; however, new research has shown just how detrimental geographical gaps in vaccine coverage can be for virus control.

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2025-05-15 23:16:26动物植物
紫外线和CT扫描帮助科学家解开保存完好的始祖鸟化石中隐藏的细节

Archaeopteryx is the fossil that proved Darwin right. It's the oldest known fossil bird, and it helps show that all birds— including the ones alive today—are dinosaurs. And while the first Archaeopteryx fossil was found more than 160 years ago, scientist

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2025-05-15 23:04:32动物植物
火星研究揭示了哺乳动物胚胎是如何形成的

Researchers at the Francis Crick Institute have revealed insight into why embryos erase a key epigenetic mark during early development, suggesting this may have evolved to help form a placenta.

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2025-05-15 22:51:39动物植物
指骨分析揭示了南非古代人类亲属如何使用手

Scientists have found new evidence for how our fossil human relatives in South Africa may have used their hands.

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2025-05-15 22:36:52动物植物
灵活的蛋白质结构域如何连接基因转录和RNA加工

In a new study published in Cell Reports, researchers at the University of Freiburg reveal how a disordered protein segment helps connect two key steps of gene expression: the reading of genes and the editing of their RNA products.

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2025-05-15 22:23:54动物植物
叶子的对称性和裂片如何影响它回到树上的旅程

Two physicists from the Technical University of Denmark have found that leaf shape is a determining factor in the distance leaves travel as they fall from their tree. In their paper published in the Journal of the Royal Society Interface, Matthew Dominic

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2025-05-15 22:13:50动物植物
重新检查与败血症相关的受体可以解决其结合相互作用的矛盾

After earning notoriety as the first cellular receptor isolated and mammalian lectin identified, the Ashwell-Morell receptor's functions in our bodies eluded scientists for more than 30 years.

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2025-05-15 22:00:56动物植物
人工智能和遗传学可以帮助农民用更少的肥料种植玉米

New York University scientists are using artificial intelligence to determine which genes collectively govern nitrogen use efficiency in plants such as corn, with the goal of helping farmers improve their crop yields and minimize the cost of nitrogen fert

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2025-05-15 21:47:59动物植物
问答:一种用于设计功能改进的RNA的生成性人工智能技术

Ribonucleic acid, also called RNA, is a molecule present in all living cells. It plays a critical role in transmitting genetic instructions from DNA and creating proteins. With the power to execute a plethora of functions, the little RNA "messenger&q

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2025-05-15 21:33:26动物植物
印度的化石发现延长了早期恐龙的时间线

Sun filters through dense stands of cycads and conifers of Gondwana, where a lithe, bipedal predator slowly moves through the Upper Triassic undergrowth. Standing just over a meter tall and measuring about two meters from snout to tail, Maleriraptor kutty

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