Mar. 26, 2025 Humans are having a highly detrimental impact on biodiversity worldwide. Not only is the number of species declining, but the composition of species communities is also changing. This is one of the largest studies ever conducted on this ...
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Mar. 18, 2025 An analysis of a 30,000-year-old fossil vulture from Central Italy has revealed for the first time that volcanic rock can preserve microscopic details in feathers -- the first ever record of such a preservation. An international team discovered a new mode of preservation of soft tissues that can occur when animals are buried in ash-rich volcanic ...
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Mar. 25, 2025 Exposure to antibiotics during a key developmental window in infancy can stunt growth of insulin-producing cells in the pancreas and may boost risk of diabetes later in life, new research in mice suggests. The study also pinpoints specific microorganisms that may help those critical cells ...
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Mar. 25, 2025 For human health, prematurely aging cells are a big problem. When a cell ages and stops growing, its function changes, which can cause or worsen cardiovascular disease, Alzheimer's disease and other chronic diseases. But these cells are also like needles in a haystack, difficult to identify by traditional scientific ...
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Mar. 25, 2025 How is organic matter transported from productive coastal areas to the open ocean? Researchers have now shown that eddies play a crucial role in this process. The swirling currents contain large amounts of energy-rich and essential fat molecules (essential lipids), which play a key role in marine food webs and the carbon ...
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Mar. 25, 2025 A new study has uncovered evidence of far-reaching ecosystem consequences following the disappearance of Great white sharks (Carcharodon carcharias) from False Bay, South Africa. The research spans over two decades and documents cascading ecological disruptions, underscoring the crucial role apex predators play in maintaining ocean ...
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Mar. 25, 2025 Researchers have developed a highly accurate land cover map for Siberia, providing insights into climate change and predictions. Using advanced machine learning techniques and existing multiple land cover maps, they were able to address the significant discrepancies found in the previous datasets. Being one of the world's most climate-sensitive regions, Siberia's newly developed map marks a ...
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Mar. 25, 2025 Plastic is everywhere in our daily lives. And much of what we use, such as cutting boards, clothes and cleaning sponges, can expose us to tiny, micrometer-wide plastic particles called microplastics. Now, chewing gum could be added to the list. In a pilot study, researchers found that chewing gum can release hundreds to thousands of microplastics per piece into saliva and potentially be ...
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Mar. 25, 2025 Life needs sufficient phosphorus. However, the element is scarce, not only today but also at the time of the origin of life. So where was there sufficient phosphorus four billion years ago for life to emerge? A team of origin-of-life researchers has an ...
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Mar. 25, 2025 Enzymes originally evolved in high-temperature environments and later adapted to lower temperatures as Earth cooled. Scientists discovered that a key shift in enzyme function occurred over evolutionary time due to amino acid changes distant from the active site. These mutations lowered activation energy, enhancing catalytic efficiency at low temperatures. Their findings highlight how global ...
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Mar. 24, 2025 A storm, even once it has passed, can leave traces in the ocean that last for thousands of years. These consist of sediment layers composed of coarse particles, which are different from the finer sediments associated with good weather. In the Caribbean, an international research team has now examined such sediments using a 30 m long core from a ...
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Mar. 21, 2025 Who were our earliest ancestors? The answer could lie in a special group of single-celled organisms with a cytoskeleton similar to that of complex organisms, such as animals and ...
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