科学家们新近识别出一种暗藏于海洋表面之下的威胁：可能持续数日甚至数月的水下突发性黑暗现象。这些被称为"海洋暗波"的事件由风暴、沉积物径流、藻华与水体混浊共同引发，会急剧减少抵达海底的光照量，使海藻林、海草床及其他依赖光照的生物群体面临生存危机。

数千年来，阿拉斯加北坡的野火极为罕见。这一情况在20世纪发生急剧变化，当时气候变暖使土壤干燥并促进灌木蔓延，为猛烈火灾创造了条件。泥炭岩心与卫星数据显示，自1950年代以来的火灾活动已达到创纪录水平。这些发现表明北极地区正步入一个新的、更危险的火灾时代。

By analyzing tooth enamel chemistry, scientists uncovered proof that Jurassic dinosaurs divided up their meals in surprising ways—some choosing buds and leaves, others woody bark, and still others a mixed menu. This dietary diversity helped massive plant-

New research from Denmark challenges long-held assumptions about body weight and health, revealing that being overweight—or even moderately obese—does not necessarily increase the risk of death compared to those at the upper end of the "normal" BMI rang

A massive study of over 4 million adults has revealed that cannabis use may nearly quadruple the risk of developing diabetes. Despite some earlier suggestions that cannabis might have metabolic benefits, this large analysis found significantly higher diab

Dry eyes are far more common than previously believed, with over half of adults in the US and Europe experiencing symptoms, yet most remain undiagnosed for years. The large-scale NESTS study reveals that sufferers often endure daily discomfort that disrup

Eye drops combining pilocarpine and diclofenac helped patients read extra lines on vision charts, with effects lasting up to two years. The treatment could revolutionize presbyopia care as a safe, non-surgical alternative to glasses.

Researchers discovered two new parasitic wasp species living in the U.S., tracing their origins back to Europe and uncovering clues about how they spread. Their arrival raises fresh questions about biodiversity, ecological risks, and the role of citizen s

Nature has long been the source of lifesaving medicines, from willow bark’s natural aspirin to new discoveries in tropical fruits. Now, chemists at the University of Delaware have pioneered a way to recreate powerful molecules from guava plants that show

A sweeping global study reveals that nearly half of people with diabetes don’t even know they have it, with young adults being the most overlooked. While most diagnosed patients receive treatment, less than half achieve proper blood sugar control, leaving

Scientists are unraveling the mysteries of "steam worlds"—exoplanets known as sub-Neptunes that are rich in water but orbit so close to their stars that their surfaces are shrouded in thick atmospheres of vapor. Using advanced models, researchers at UC

A 28-day trial showed that pterostilbene cream improved wrinkles, skin firmness, collagen, and pore size far better than a control emulsion. The results highlight pterostilbene as a promising natural ingredient for next-generation anti-aging skincare.