2023-11-20 15:57:35考古学
古CSI:摩萨龙是挑食动物

The cradle of palaeontology -- the study of fossil remains of animals and plants -- lies in the Maastricht limestones, where the first Mosasaurus was discovered in 1766. The Dutch-Belgian border area around the Limburg capital is one of the best-

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2023-11-20 15:57:34考古学
亚磷酸盐之谜——一个科学侦探故事

Our story begins at the end of the 1980s, with a sheet of paper. On this sheet, a scientist calculated that the conversion of the chemical compound phosphite to phosphate would release enough energy to produce the cell's energy carrier -- the ATP molecul

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2023-11-20 15:57:34考古学
细菌-病毒军备竞赛为了解快速复杂进化提供了难得的窗口

As conceived by Charles Darwin in the 1800s, evolution is a slow, gradual process during which species adaptations are inherited incrementally over generations. However, today biologists can see how evolutionary changes unfold on much more accelerated tim

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2023-11-20 15:57:33考古学
苏必利尔湖的研究揭示了硫在地球古代海洋中的循环方式

Geochemist Alexandra Phillips has sulfur on her mind. The yellow element is a vital macronutrient, and she's trying to understand how it cycles through the environment. Specifically, she's curious about the sulfur cycle in Earth's ancient ocean, some 3

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2023-11-20 15:57:33考古学
今天的一些地震可能是19世纪地震的余震

In the 1800s, some of the strongest earthquakes in recorded U.S. history struck North America's continental interior. Almost two centuries later, the central and eastern United States may still be experiencing aftershocks from those events, a new study f

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2023-11-20 15:57:32考古学
地球表面的水深入,改变了核心的外层

A few decades ago, seismologists imaging the deep planet identified a thin layer, just over a few hundred kilometers thick. The origin of this layer, known as the E prime layer, has been a mystery -- until now.

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2023-11-20 15:57:32考古学
古代海水的再生揭示了哪些营养物质塑造了早期生命的进化

Scientists know very little about conditions in the ocean when life first evolved, but new research published in Nature Geoscience has revealed how geological processes controlled which nutrients were available to fuel their development.

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2023-11-20 15:57:31考古学
在现代人类到来之前,欧洲还没有被茂密的森林覆盖

Textbooks on biology and forestry make it clear that large parts of Europe would naturally be covered by dense forests.

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2023-11-20 15:57:30考古学
研究揭示了地球如何循环化石碳

As the primary element of life on our planet, carbon is constantly journeying from living creatures down into the Earth's crust and back up into the atmosphere, but until recently, quantifying this journey was virtually impossible.

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2023-11-20 15:57:29考古学
Gezer市的放射性碳年代测定与埃及学和圣经记载相结合

New dates provide detailed insights into the timing of events in the ancient city of Gezer, according to a study published November 15, 2023 in the open-access journal PLOS ONE by Lyndelle Webster of the Austrian Academy of Sciences and colleague

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2023-11-20 15:57:29考古学
水生鳄鱼的多种进化轨迹

In the geological past, several groups of crocodiles evolved towards a morphology adapted to marine life. However, the extent of these adaptations and their evolutionary trajectories remained unknown. An exhaustive study of their morphology by a scientifi

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2023-11-20 15:57:28考古学
恐龙灭绝后幸存的植物从空气中提取氮气

Once a favored food of grazing dinosaurs, an ancient lineage of plants called cycads helped sustain these and other prehistoric animals during the Mesozoic Era, starting 252 million years ago, by being plentiful in the forest understory. Today, just a few

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