2024-06-11 12:28:26动物植物
研究表明,用表扬和抚摸来奖励狗狗有助于它们更有效地学习

Dogs' learning success is enhanced when they are not only rewarded with food, but also praised and petted for their good performance, according to a new study by researchers from the Department of Ethology at ELTE Eötvös Lorá

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2024-06-11 12:14:26动物植物
一场激烈的战斗正在我们脚下的土壤中进行,对全球变暖的影响可能是巨大的

As humanity continues to burn fossil fuels, the delicate balance of life on Earth is changing. That's true of trees, many of which are growing faster as a result of increased carbon dioxide (CO₂) concentrations in our atmosphere.

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2024-06-11 12:01:43动物植物
科学家发现细胞周期在纤毛形成中的新作用

The awe-inspiring process of cell division can turn a fertilized egg into a baby—or a cancerous cell into a malignant tumor. With so much at stake, nature keeps it tightly controlled in a process called the cell cycle that scientists thought they thorough

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2024-06-11 11:47:30动物植物
鱼出水:溪鱼胚胎如何适应其发育

The annual killifish lives in regions with extreme drought. A research group at the University of Basel now reports in Science that the early embryogenesis of killifish diverges from that of other species. Unlike other fish, their body structure is not pr

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2024-06-11 11:34:13动物植物
研究发现,与独自游泳的人相比,鱼群在湍流中消耗的能量更少

Swimming through turbulent water is easier for schooling fish compared to solitary swimmers, according to a study published June 6 in the open-access journal PLOS Biology by Yangfan Zhang of Harvard University, Massachusetts, US, and colleagues.

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2024-06-11 11:21:05动物植物
计算机模型展示了对社交距离的渴望改善了鸽子的飞行路线

A new study conducted by Dr. Edwin Dalmaijer, a cognitive neuroscientist at the University of Bristol, UK, looked at the social influences on pigeon flight routes. Comparing the flight patterns of pairs of pigeons to a computer model, the researcher found

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2024-06-11 11:09:22动物植物
有袋动物是发现哺乳动物加热器器官起源的关键

Around 100 million years ago, a remarkable evolutionary shift allowed placental mammals to diversify and conquer many cold regions of our planet. New research from Stockholm University shows that the typical mammalian heater organ, brown fat, evolved excl

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2024-06-11 10:54:49动物植物
一种新型喷雾装置帮助研究人员捕捉快速移动的细胞过程

Cells are the basic units of life—but many of their fundamental processes happen so fast and at such small length scales that current scientific tools and methods can't keep up, preventing us from developing a deeper understanding.

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2024-06-11 10:41:01动物植物
大型田间实验表明,即使在土壤营养不良的情况下,热带森林也会调整策略以茁壮成长

Tropical forests store a third of the world's carbon in their wood and soils. However, their future as a carbon sink has been uncertain. Scientists have long wondered whether nutrient-poor tropical soils would limit the ability of mature and recovering f

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2024-06-11 10:28:35动物植物
在原生生物中发现的第一个细胞折纸例子

Combining a deep curiosity and "recreational biology," Stanford researchers have discovered how a simple cell produces remarkably complex behavior, all without a nervous system. It's origami, they say.

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2024-06-07 08:09:03动物植物
研究证实网上和国际市场上存在欺诈性的卡卡杜李提取物

To coincide with Australia's National Reconciliation Week, ANSTO is sharing research published recently in the journal Food Control that confirms fraudulent Kakadu plum extracts are in circulation online and in the international marketplace. Kakadu plum

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2024-06-07 07:55:46动物植物
新的珊瑚病预报系统有助于生态预报

Research led by the University of Hawaiʻi at Mānoa Hawaiʻi Institute of Marine Biology (HIMB) has led to a new tool for forecasting coral disease that could help conservationists step in at the right times with key interventions. Ecological forecasts are

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