2025-04-20 18:46:09动物植物
干细胞条形码揭示了大脑和内耳是如何形成的

Researchers at Karolinska Institutet have developed a method that shows how the nervous system and sensory organs are formed in an embryo. By labeling stem cells with a genetic "barcode," they have been able to follow the cells' developmental j

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2025-04-20 18:31:41动物植物
有些昆虫正在减少,但其他99%的昆虫呢?

Insects are the dominant form of animal life on our planet, providing humans and wildlife with pollination, food, and recycling services but, despite concerns about population declines, little is known about how 99% of species globally are faring.

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2025-04-20 18:21:35动物植物
荧光生物传感器实时追踪植物RNA,以改善作物和生物安全

Scientists at Oak Ridge National Laboratory have developed the first-ever method of detecting ribonucleic acid, or RNA, inside plant cells using a technique that results in a visible fluorescent signal. The technology can help researchers detect and track

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2025-04-20 18:11:09动物植物
研究表明,随着时间的推移,关键细菌物种的抗生素耐药性趋于平稳

Antibiotic resistance tends to stabilize over time, according to a study published in the open-access journal PLOS Pathogens by Sonja Lehtinen from the University of Lausanne, Switzerland, and colleagues.

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2025-04-20 17:59:28动物植物
面对生物多样性下降,动物行为多样性面临风险

Our environment is changing rapidly, largely as a result of human activities, leading to a significant decline in biodiversity. According to researchers from the University of Victoria and the Max Planck Institute for Evolutionary Anthropology, this decli

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2025-04-20 17:48:52动物植物
分子钟分析表明,细菌在广泛的光合作用之前很久就使用了氧气

Microbial organisms dominate life on Earth, but tracing their early history and evolution is difficult because they rarely fossilize. Determining when exactly a particular group of microbes first appeared is especially hard. However, ancient sediments and

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2025-04-20 17:34:40动物植物
研究发现,倭黑猩猩以与人类语言相似的方式组合叫声

Bonobos—our closest living relatives—create complex and meaningful combinations of calls resembling the word combinations of humans.

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2025-04-20 17:24:07动物植物
萤火虫光产生了检测细胞变化的传感器

The gene encoding an enzyme from a firefly, discovered at the Sorocaba campus of the Federal University of São Carlos (UFSCar) in Brazil, has given rise to a biosensor capable of detecting pH changes in mammalian cells—which could be useful, for example,

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2025-04-20 17:13:28动物植物
真菌生物钟:对抗植物病害的潜在靶标

Fusarium oxysporum is a soil-borne fungal pathogen that causes a group of serious plant diseases known as Fusarium wilts. As one of the most economically important plant pathogens worldwide, it can infect hundreds of species—including major crops like tom

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2025-04-20 16:58:38动物植物
海洋微生物揭示了新的制氢基因簇

A genomic study of hydrogen-producing bacteria has revealed entirely new gene clusters capable of producing large volumes of hydrogen.

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2025-04-20 16:44:25动物植物
猎物的大小在狼、熊和美洲狮之间的竞争中起着令人惊讶的作用

New research from the University of Minnesota upends long-held understanding about how wolves, bears and cougars—three of Yellowstone National Park's most iconic carnivores—compete for prey.

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2025-04-20 16:33:20动物植物
新化石揭示喜马拉雅山麓的古代食肉哺乳动物

A group of researchers, including Harrisburg University of Science and Technology (HU) Professor Dr. Steven Jasinski, has published a study on fossil carnivoran mammals from the foothills of the Himalayan Mountains in northern India.

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