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

阅读全文
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.

阅读全文
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

阅读全文
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

阅读全文
2025-04-19 15:15:32动物植物
琥珀中保存的古代寄生“捕蝇草”黄蜂揭示了寄生蜂的策略

An extinct lineage of parasitic wasps dating from the mid-Cretaceous period and preserved in amber may have used their Venus flytrap-like abdomen to capture and immobilize their prey.

阅读全文
2025-04-19 15:03:21动物植物
DNA显微镜从内到外创建生物体的3D图像

Standard genetic sequencing approaches can tell you a lot about the genetic makeup and activity in a sample, like a piece of tissue or drop of blood. But they don't tell you where specific genetic sequences were located inside that sample, or their relat

阅读全文
2025-04-19 14:50:45动物植物
科学家呼吁将帝企鹅列入国际自然保护联盟红色名录

Scientists at the Woods Hole Oceanographic Institution (WHOI), in collaboration with international partners, have developed a novel approach to addressing uncertainties in ecological and environmental projections, providing a more robust assessment of ext

阅读全文
2025-04-19 14:37:10动物植物
犹他州生态学家证实,“蜂巢州”名副其实

Wildlife conservation is critical to sustaining the planet's biodiversity and health. But putting together a conservation plan is a tall order. First of all, you need to determine what species you're conserving, along with their numbers, habitat needs,

阅读全文
2025-04-19 14:22:42动物植物
研究发现运动细胞的普遍性——这一发现可能会影响健康和机器人技术

A study focusing on analyzing cell models found universality in their movement—an important discovery that could impact both health and robotics.

阅读全文
2025-04-19 14:08:06动物植物
科学家发现酶是如何在低温下进化的

Life has evolved over billions of years, adapting to the changing environment. Similarly, enzymes—proteins that speed up biochemical reactions (catalysis) in cells—have adapted to the habitats of their host organisms. Each enzyme has an optimal temperatur

阅读全文
2025-04-19 13:53:54动物植物
在土壤中添加硅可以帮助番茄植株对抗南美番茄蛲虫

A team of entomologists and botanists at the International Center of Insect Physiology and Ecology in Nairobi and the University of Pretoria has found that adding silicon to soil can help tomato plants fight off the destructive South American tomato pinwo

阅读全文
2025-04-19 13:43:16动物植物
谁在打电话?蝙蝠通过解决感官冲突战胜了欺骗

Would you answer someone's cry for help if that someone was sitting unharmed in front of you? Most probably would not, and bats have similar reservations, according to a new study published in Current Biology in which researchers from the Museum für Natu

阅读全文
 3154   首页 上一页 68 69 70 71 72 73 74 75 76 77 下一页 尾页