2025-02-25 16:49:15动物植物
宠物跳蚤治疗可能会伤害野生动物,但主人可以提供帮助

Toxic substances used in flea and tick treatments pet owners give to their dogs and cats have been detected in birds' nests, according to new UK research published in Science of The Total Environment.

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2025-02-25 16:38:10动物植物
雄蝇通过提高视力来揭穿雌蝇的虚张声势:研究表明进化正在进行中

With bloated bellies and hairy legs, female flies try to look bigger to get food from courting mates. But male flies, in turn, have sharpened their eyesight to call their bluff. A new study by researchers from the Universities of Gothenburg and Stockholm

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2025-02-25 16:23:59动物植物
基于网络的应用程序可以识别世界各地和农场周围的昆虫

A farmer notices an unfamiliar insect on a leaf. Is this a pollinator? Or a pest? Good news at harvest time? Or bad? Need to be controlled? Or not?

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2025-02-25 16:11:50动物植物
分子开关在转变的关键时刻逆转癌变

Professor Kwang-Hyun Cho's research team of the Department of Bio and Brain Engineering at KAIST has captured the critical transition phenomenon at the moment when normal cells change into cancer cells and analyzed it to discover a molecular switch hidde

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2025-02-25 16:01:49动物植物
巨型噬菌体喜欢杀死细菌——它们能被用作抗生素吗?

Phages are viruses that attack bacteria by injecting their DNA, then usurping bacterial machinery to reproduce. Eventually, they make so many copies of themselves that the bacteria burst. By looking at this process in a unique type of virus called a jumbo

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2025-02-25 15:47:46动物植物
罕见的翼龙化石揭示了7600万年前鳄鱼的咬伤

The fossilized neck bone of a flying reptile unearthed in Canada shows tell-tale signs of being bitten by a crocodile-like creature 76 million years ago, according to a study published 23 January in the Journal of Paleontology.

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2025-02-25 15:35:42动物植物
兰花独特的结构揭示了新的自花授粉机制

130 years after a fungus-eating plant received its name, a Kobe University researcher has uncovered the purpose of the structure that inspired its name—revealing a novel mechanism by which plants ensure reproduction.

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2025-02-25 15:22:15动物植物
研究显示赤蠵龟的分布范围迅速变化

Loggerhead sea turtles are sentinels for changing oceans. In a new analysis covering nearly 30 years of data on turtle movements, sea surface temperatures, and seawater chlorophyll levels, Stanford scientists found that the reptiles are shifting their ran

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2025-02-25 15:10:51动物植物
不寻常的硫途径为高优先级病原体提供了一个有前景的靶点

The tell-tale smell of rotten eggs is often a sign that sulfur is at work. Sulfur is a key element in proteins such as keratin, which makes hair and nails tough, and used in agriculture to make fertilizers. Researchers at UCD Conway Institute in Universit

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2025-02-25 14:59:44动物植物
细菌变化为军团病提供了新的治疗方法

The bacteria Legionella can survive in water systems for years and can cause acute and chronic illness: In 2014-15, it was blamed for at least 12 deaths in the Flint water crisis in Michigan, and as recently as 2023, health officials in Ithaca warned of a

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2025-02-25 14:48:52动物植物
V-161:新发现的化合物推进了对抗抗生素耐药细菌的斗争

A recent study by a team from Chiba University has demonstrated a promising approach for fighting antibiotic resistance by identifying a compound, V-161, that inhibits a sodium-pumping enzyme critical for VRE survival under alkaline conditions in the inte

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2025-02-25 14:35:18动物植物
研究表明,全球粮食生产导致生物多样性严重丧失

As the world grapples with the challenges of climate change and food insecurity, the need for sustainable food production has taken on a new urgency.

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