2025-02-22 14:01:45动物植物
罗马尼亚化石显示,欧洲的古人类比人们想象的要早50万年

Research led by the Department of Sociology & Anthropology at Ohio University has found evidence of hominin activity at a Romanian fossil site dating to at least 1.95 million years ago. This discovery pushes back the known date of European hominins by

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2025-02-22 13:48:04动物植物
阿兹拉克盆地化石揭示哺乳动物在更新世-全新世气候转变期间萎缩

Earth's climate changed dramatically during the Late Pleistocene and Early Holocene 130,000 to 7,000 years ago, when cold glacial cycles transitioned into the current warmer interglacial. Such a climatic evolution had considerable effects on the ecosyste

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2025-02-22 13:35:06动物植物
濒危和特殊:新昆虫物种凸显科索沃生物多样性热点

A new species of caddisfly, Tinodes lumbardhi, was found in a sidestream of the Lumbardhi i Deçanit River in Kosovo's Bjeshkët e Nemuna National Park. The discovery, made by Professor Halil Ibrahimi of the University of Prishtina and his research team, u

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2025-02-22 13:22:19动物植物
纸基传感器提供了一种环保、经济实惠的方式来监测全球农业

Greenhouses and open farms that welcome visitors to purchase locally grown produce and meat have become increasingly important to food productivity. Not only are farmers looking for ways to monitor conditions to help improve greenhouse crop growth and yie

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2025-02-22 13:10:15动物植物
树木和灌木上奇怪的蓝色环揭示了过去寒冷的夏天,这可能是火山爆发造成的

Trees need a certain number of warm days in their growing seasons to grow properly; otherwise, the cell walls of new growth don't lignify properly, creating blue rings that appear when wood samples are dyed.

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2025-02-22 12:55:30动物植物
自然特征和油气结构影响鲸鲨在海景中的运动

Whale sharks are drawn to natural underwater features such as seamounts and canyons as well as artificial features like offshore oil and gas platforms, with both acting as migratory "stepping stones," a new study published in the journal Diversi

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2025-02-22 12:41:03动物植物
鉴定出可以去除微塑料的肽

Researchers have identified peptides that can help remove microplastics from the environment by combining biophysical modeling, molecular dynamics, quantum computing, and reinforcement learning. The ultimate goal of the work is peptide-based technologies

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2025-02-22 12:30:20动物植物
简化蛋白质的重新设计可以提高配体结合

In biology, the binding of cellular proteins to molecules called ligands produces myriad functions essential for life, including cell signaling and enzymatic action. In biotechnology and medicine, the ability of researchers to alter proteins to refine con

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2025-02-22 12:15:52动物植物
逆转雄性果蝇与年龄相关的生育能力下降:精液的关键作用

As males age, their reproductive success typically declines. A study on fruit flies, led by University of Oxford researchers, has found that while old males do produce fewer offspring than young males, this is not because they have fewer sperm, but it is

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2025-02-22 12:01:33动物植物
科学家们终于知道细胞是如何构建一个让它们迁移的结构的

Some of the body's cells stay put for life, while others are free to roam. To move, these migratory cells rely on filopodia—sensitive, finger-like protrusions that reach out from the cell membrane into the local environment. In a healthy cell, this can b

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2025-02-22 11:47:29动物植物
实验室培养的肠道:蛋白质打印模拟人类肠道结构

An IBEC-led study describes the development of an innovative method to control the formation of crypt-like structures and villi in the intestine using a contact protein printing technique. This model will make it possible to study in detail key processes

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2025-02-22 11:37:22动物植物
5000年来首次在埃及发现斑点鬣狗

A spotted hyena (Crocuta crocuta) has been found in South Eastern Egypt, the first recorded instance of the creature in this region for thousands of years.

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