2024-12-20 19:32:03动物植物
基因工程小鼠揭示了信息素如何驱动交配行为

Pheromones—chemicals produced by animals—are well-known for influencing the social and sexual behavior of members of the same species. These chemical signals convey vital information, such as gender and reproductive status. Detection of pheromones by the

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2024-12-20 19:21:51动物植物
进化研究揭示了植物王国中致病细菌的毒性范围

The capacity of bacteria to spread disease across the plant kingdom may be much more widespread than previously suspected, according to new analysis.

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2024-12-20 19:11:50动物植物
研究表明,加州苦苦挣扎的野花有一种廉价的解决方案

California's native wildflowers are being smothered by layers of dead, invasive grasses. A new UC Riverside study shows that simply raking these layers can boost biodiversity and reduce fire danger.

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2024-12-20 18:57:27动物植物
1.5亿年前的家庭团聚:古生物学家发现了近50个翼手龙的隐藏亲属

Christmas is the time for families to come together, and in the midst of the festive season, University of Leicester paleontologists have announced that they have reunited a family that has been separated for 150 million years.

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2024-12-20 18:42:57动物植物
CRISPR筛选方法利用有色细胞核揭示关键基因

The identification of genes involved in diseases is one of the major challenges of biomedical research. Researchers at the University of Bonn and the University Hospital Bonn (UKB) have developed a method that makes their identification much easier and fa

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2024-12-20 18:32:52动物植物
寄生虫的基因突变可能导致昏睡病的全球传播

Parasites that cause the deadly illness known as sleeping sickness can spread beyond their native Africa as a result of mutations to key genes, a study shows.

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2024-12-20 18:20:47动物植物
分子工具演示了如何识别生殖系统破坏的坏卵

The biological factory that produces reproductive cells has a robust quality control system to identify and eliminate eggs with chromosomal abnormalities. For years, cell biologists have sought to uncover the mechanisms behind this system, relying on trad

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2024-12-20 18:07:29动物植物
吃二氧化碳的细菌可以将烟囱烟雾中的碳直接回收到新产品中

Researchers from Aarhus University (AU) have developed a new technology that uses microorganisms to convert the CO2 in flue gas directly for new purposes—for example fuels or substances for the chemicals industry.

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2024-12-20 17:56:45动物植物
预警工具可能有助于控制巨大的蝗虫群

Desert locusts typically lead solitary lives until something—like intense rainfall—triggers them to swarm in vast numbers, often with devastating consequences.

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2024-12-20 17:42:42动物植物
研究发现,细胞RNA在抗病毒防御中起着关键作用

Scientists have uncovered a new role for a cell's own RNA in fending off attacks by RNA viruses. Some of the cell's RNA molecules, researchers found, help regulate antiviral signaling. These signals are part of the intricate coordination of immune respo

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2024-12-20 17:28:18动物植物
延长生命图显示,古代物种可能进化得更慢,持续时间更长

If all the world's a stage and all the species merely players, then their exits and entrances can be found in the rock record. Fossilized skeletons and shells clearly show how evolution and extinction unfolded over the past half a billion years, but a Vi

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2024-12-20 17:15:31动物植物
新发现的神秘化石种子揭示了冰河时代的气候模式

La Brea Tar Pits scientists have identified a previously unknown juniper species as Juniperus scopulorum, commonly known as the Rocky Mountain Juniper. The successful identification, along with the first-ever radiocarbon dating of these fossil plants in S

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