2024-02-26 16:03:52动物植物
一只小蜜蜂是如何到达法属波利尼西亚的?八个新物种帮助解开一个科学谜团

In 1934, American entomologist Elwood Zimmerman, then an undergraduate student at Berkeley, participated in the "Mangarevan expedition" to Polynesia. Among the samples he collected were three tiny (4 mm long), orange-brown solitary bees found on

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2024-02-18 16:52:36动物植物
人工智能工具预测未知蛋白质的功能

A new artificial intelligence (AI) tool that draws logical inferences about the function of unknown proteins promises to help scientists unravel the inner workings of the cell.

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2024-02-18 16:52:35动物植物
研究发现,蜘蛛和昆虫的不完全模仿主要是由适应过程而非约束形成的

Two natural scientists at Macquarie University, working with an evolutionary specialist at the University of New South Wales, all in Australia, have found that imperfect mimicry in spiders and insects is likely mainly shaped by adaptive processes rather t

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2024-02-18 16:52:33动物植物
情歌让科学家们发现了在缅甸发现的新的天行者长臂猿种群

Skywalker gibbon couples wake up each morning and sing to each other, their voices echoing across the forest canopy of their home. The primate's endearing love song helped scientists confirm what was formerly a strong hunch: Myanmar has the largest popul

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2024-02-18 16:52:29动物植物
DNA揭示了独特的微生物在两极进化

Communities of microorganisms at the bottom of polar lakes evolved independently from other regions, influenced by the particular geological, biological, and climate history of their regions. The unique character of the microbial communities underscores t

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2024-02-18 16:52:27动物植物
改变常用农网的颜色可以减轻对韭菜田的虫害

Red nets are better at keeping away a common agricultural insect pest than typical black or white nets, according to a new study. Researchers have experimented with the effect of red, white, black and combination-colored nets on deterring onion thrips fro

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2024-02-18 16:52:24动物植物
使用三种人工智能蛋白质预测工具,研究揭示了“孤儿”蛋白质折叠故事中的新皱纹

When Profs. Joel Sussman and Israel Silman were asked to mentor Chinese students online during the COVID-19 pandemic, the last thing they expected to come out of the experience was highly innovative research on protein evolution that could change our unde

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2024-02-18 16:52:22动物植物
伟大的化石遗址如何塑造我们对化石群之间进化关系的理解

A new study published in the journal PLOS ONE explores the weight great fossil sites have on our understanding of evolutionary relationships between fossil groups—the lagerstätten effect—and for the first time, has quantified the power these sites have on

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2024-02-18 16:52:14动物植物
科学报告揭示牲畜是作弊草传播的关键因素

A report released today illuminates the causes of cheatgrass spread and compares the effectiveness of various methods to restore invaded plant communities.

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2024-02-18 16:52:08动物植物
外来猫识别熟悉的人类照顾者声音的能力

In a recent PeerJ study, Professor Jennifer Vonk from Oakland University presents compelling evidence that exotic cats possess the remarkable ability to discriminate between familiar and unfamiliar human voices.

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2024-02-18 16:51:55动物植物
一项新的研究使作物的无性繁殖越来越近

When the female gametes in plants become fertilized, a signal from the sperm activates cell division, leading to the formation of new plant seeds. This activation can also be deliberately triggered without fertilization, as UZH researchers have shown. The

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2024-02-18 16:51:53动物植物
路边的杂草如何积聚爆炸力来投掷种子

Hairy bittercress is one of those plants that hurl their seeds in all directions to spread them effectively. A research team has now discovered that to do this, the plant uses a previously unknown mechanism that makes the seed pods contract and snap open,

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