2024-05-06 11:55:02动物植物
水生生物:为什么昼夜活动的青蛙物种保持适应夜视的基因

Frogs display a remarkable diversity of species as a whole, but does the same hold true for their visual abilities? A new study led by York University's Faculty of Science has sought to answer this question by collaborating with researchers in Australia,

阅读全文
2024-05-06 11:42:15动物植物
新研究表明,神经细胞内的关键分子在一生中都存在

After two decades in the United States, Martin Hetzer returned home to Austria in 2023 to become the 2nd President of the Institute of Science and Technology Austria (ISTA). A year into his new role, the molecular biologist remains engaged in the realm of

阅读全文
2024-05-06 11:30:19动物植物
中国科学家揭示蚕的自转机制

Mulberry silk is a natural protein fiber that is light, soft and fine in nature, known as the "second skin of the human body" and "Queen of fibers." China is the origin of the world's sericulture industry.

阅读全文
2024-05-06 11:18:31动物植物
新发现海豚化石

University of Otago researchers have formally identified and named a fossil dolphin which they discovered has a unique feeding method.

阅读全文
2024-05-06 11:04:31动物植物
从大黄蜂的基因中发现了锈迹斑斑的大黄蜂为生存所做的努力

A team of researchers has uncovered alarming trends in the first range-wide genetic study of an endangered bee species. The study, led by Colorado State University and published in the Journal of Insect Science, will inform conservation and recovery effor

阅读全文
2024-05-06 10:51:35动物植物
研究表明,入侵物种的影响超越了生态系统的界限

Invasive species influence biodiversity across larger spatial extents than previously thought. In a recently published study, researchers from Eawag and the University of Zurich show that the impacts of invasive species extend far beyond the ecosystems th

阅读全文
2024-05-06 10:38:36动物植物
四十年的三文鱼罐头揭示了海洋食物网

Alaskan waters are a critical fishery for salmon. Complex marine food webs underlie and sustain this fishery, and scientists want to know how climate change is reshaping them. But finding samples from the past isn't easy.

阅读全文
2024-04-09 18:08:25动物植物
研究报告称,人们和环境都受益于多样化的农业,同时底线也会蓬勃发展

A massive new global study led by the University of Copenhagen and University of Hohenheim has examined the effects of diversified agriculture. The conclusion is abundantly clear—positive effects increase with every measure, while negative effects are har

阅读全文
2024-04-09 17:55:14动物植物
研究表明,两栖动物利用人类听不见的尖叫来防御捕食者

A study reported in the journal acta ethologica has recorded the use of ultrasound by amphibians for the first time in South America. It also describes the first documented case of the use of ultrasound for defense against predators, in a distress call of

阅读全文
2024-04-09 17:42:00动物植物
科学家发现破坏细菌病毒沙门氏菌感染的过程

Researchers at the University of Colorado Anschutz Medical Campus have discovered a mechanism by which a bacterial virus undermines the virulence of Salmonella, allowing the host a chance to rehabilitate.

阅读全文
2024-04-09 17:29:00动物植物
珊瑚礁管理技术有可能拯救珊瑚

Scientists say the relocation of coral away from the path of a new wastewater pipe has been a success and shows how coral can be moved to reduce the impact of developments and natural disasters.

阅读全文
2024-04-09 17:18:37动物植物
数据显示,五分之四的鸟类无法承受人类的巨大压力

Currently 14% of the world's 11,000 bird species are threatened with extinction. A new study assessed the populations of bird species across a spectrum of landscapes from pristine habitats to human-dominated environments.

阅读全文
 3154   首页 上一页 212 213 214 215 216 217 218 219 220 221 下一页 尾页