2025-05-10 18:12:03动物植物
新发现的侏罗纪哺乳动物化石具有不同寻常的牙齿替换模式

A recent study published in Papers in Palaeontology describes the discovery and identification of a new species of pinheirodontid multituberculate based on the preserved hemimandible from the Upper Jurassic (Tithonian) Freixial Formation in the Ulsa quarr

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2025-05-10 17:58:31动物植物
研究发现,强化农田有时比农业扩张对生物多样性的影响更大

The intensification of existing farmland can sometimes be more harmful to local biodiversity than expanding the area covered by agricultural land, finds a new study led by University College London (UCL) researchers.

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2025-05-10 17:44:15动物植物
转录组学揭示了根细胞如何“感知”和适应土壤

Scientists have discovered, for the first time, how root cells respond to their complex soil environment, revealing that roots actively "sense" their microenvironment and mount precise, cell-specific molecular responses. The findings could help

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2025-05-10 17:30:30动物植物
专家敦促对绿色硝酸盐肥料的收益持谨慎态度

Monash University scientists are urging caution around recent claims of breakthroughs in green nitrate fertilizer production, warning there is more work to do before the concept is market-ready.

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2025-05-10 17:20:05动物植物
Fast-dividing细胞更容易受到致癌突变的影响

The ability of mutations to cause cancer depends on how fast they force cells to divide, Sinai Health researchers have found.

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2025-05-10 17:05:13动物植物
森林同步:云杉在日食期间进行交流

An international study has revealed spruce trees not only respond to a solar eclipse but actively anticipate it by synchronizing their bioelectrical signals hours in advance into a cohesive, forest-wide phenomenon.

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2025-05-10 16:53:56动物植物
首次揭示了所有鸟类的进化关系

Professor Emily Jane McTavish and colleagues at the Cornell Lab of Ornithology have mapped the evolution of every known bird species.

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2025-05-10 16:41:12动物植物
失去大自然的“无名英雄”威胁着生态系统

A new study published in Nature Ecology & Evolution has put to the test what happens when dominant ant species vanish from the ecosystem—with worrying results.

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2025-05-10 16:28:38动物植物
随着气候变暖导致生物多样性发生重大变化,北极植物生命发生了变化

Rapid climate change is upending plant life in the Arctic. A new study in Nature shows how one of the most fragile ecosystems on Earth is changing as warming is up to four times faster in the Arctic than on Earth on average. Scientists around the world ha

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2025-05-10 16:18:15动物植物
疱疹病毒蛋白模拟宿主酶来平衡感染和潜伏期

Viruses are microscopic pathogens composed of genetic material housed within a protective protein shell. While they carry the blueprint required for producing additional viral proteins, they lack the equipment needed for the same. For this, they hijack ho

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2025-05-10 16:03:37动物植物
使用细菌作为活试管研究人类基因突变并寻找新的药物线索

Traditional biochemical methods of studying human gene mutations are often laborious and costly. Now bioengineers at the University of California San Diego have developed a new simple approach to rapidly check on human gene changes and also screen chemica

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2025-05-10 15:53:19动物植物
微小RNA的微小调整揭示了基因控制的重大见解

Researchers at Karolinska Institutet and Uppsala University have developed a powerful new technique to better understand how tiny molecules in our cells, called microRNAs, control which genes are turned on or off—a discovery that could improve how we stud

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