2025-04-19 17:53:27动物植物
“太多是件好事”:分析显示,过度使用使Bt玉米对根虫的效果降低

Widespread planting of corn hybrids designed to combat corn rootworm, the crop's most damaging pest in the Corn Belt, is reducing both the technology's effectiveness and some farmers' profits.

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2025-04-19 17:39:20动物植物
放大致命埃博拉病毒的结构

Six years before the start of the COVID-19 pandemic, an Ebola outbreak in West Africa had people fearing the possibility of a global outbreak. This was the first time many had ever heard of the virus, but since it was first identified in 1976, there have

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2025-04-19 17:25:06动物植物
葡萄糖的双重生命:研究揭示了它作为组织再生主调节器的惊人作用

The sugar glucose, which is the main source of energy in almost every living cell, has been revealed in a Stanford Medicine study to also be a master regulator of tissue differentiation—the process by which stem cells give rise to specialized cells that m

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2025-04-19 17:11:32动物植物
在困扰科学家80年后,奇怪的菲律宾青蛙被揭露为杂交青蛙

Evolutionary biologists working in the Philippines have long puzzled over a hard-to-find amphibian mystery: the Leyte Chorus Frog. It's a small, ground-dwelling frog from Leyte Island in the Visayan province of the eastern Philippines. The country is an

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2025-04-19 17:01:07动物植物
研究发现,墨鱼用移动的皮肤模式“迷惑”猎物

While sneaking up on prey, cuttlefish employ a dynamic skin display to avoid detection in the last moments of approach, researchers at the University of Bristol have found.

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2025-04-19 16:49:25动物植物
两个基因的相互作用阐明了人类大脑是如何进化的

Researchers from the German Primate Center—Leibniz Institute for Primate Research and the Max Planck Institute of Molecular Cell Biology and Genetics have discovered two specific genes that evolve exclusively in humans jointly influence the development of

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2025-04-19 16:37:51动物植物
蒙古出土的巨爪属于一种新的双指恐龙

An international team of paleontologists and Earth scientists has identified fossilized remains as a two-clawed therizinosaur. The fossils were unearthed more than a decade ago in Mongolia. Their paper is published in the journal iScience.

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2025-04-19 16:23:08动物植物
地球上最大的一次大灭绝后,幸存者如何跨越全球

Scientists don't call it the "Great Dying" for nothing. About 252 million years ago, upward of 80% of all marine species vanished during the end-Permian mass extinction—the most extreme event of its kind in Earth's history.

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2025-04-19 16:11:27动物植物
反向遗传系统促进非洲猪瘟病毒疫苗开发

Researchers from the J. Craig Venter Institute (JCVI), the Friedrich-Loeffler-Institut (FLI), and the International Livestock Research Institute (ILRI) have developed a reverse genetics system for African swine fever virus (ASFV). This new system will aid

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2025-04-19 15:57:05动物植物
突破时刻:研究人员发现了一类新的抗生素

The last time a new class of antibiotics reached the market was nearly three decades ago—but that could soon change, thanks to a discovery by researchers at McMaster University.

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2025-04-19 15:43:57动物植物
科学家创造了实验室培养的琥珀状树脂来研究化石保存

The Field Museum in Chicago and the Foundation for Scientific Advancement reported that sediment-encased maturation of pine resin produces a hardened, translucent substance that closely mimics natural copal and amber in appearance, texture, and chemical s

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2025-04-19 15:29:52动物植物
科学家发现进化的关键机制:全基因组复制驱动长期适应

Sometimes, the most significant scientific discoveries happen by accident. Scientists have long known that whole-genome duplication (WGD)—the process by which organisms copy all their genetic material—plays an important role in evolution. But understandin

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