اكتشف علماء حشرة قديمة محفوظة في كهرمان من ميانمار عمره نحو 100 مليون عام، تمتلك أرجلًا أمامية بمخالب تشبه كماشات السرطان. يشير الاكتشاف إلى أن هذه البُنى تطورت بشكل مستقل في هذا الفرع، وهو رابع مثال معروف فقط لظهور مثل هذه المخالب في الحشرات.
اقرأ المزيد ←كشف باحثون تفاصيل داخل جمجمة سمكة قطبية عمرها 380 مليون عام مرتبطة بأوائل الحيوانات التي مشت على اليابسة. أظهرت تقنيات التصوير النيوتروني أن السمكة امتلكت سمات قد تساعدها على العيش قرب سطح الماء وابتلاع الهواء، ما يقدم أدلة جديدة على انتقال الحياة من الماء إلى البر.
اقرأ المزيد ←Scientists at McGill University have found a way to supercharge the immune system’s natural killer (NK) cells, helping them break through the defenses tumors use to stay alive. By temporarily blocking two proteins, researchers turned these cells into far more effective cancer fighters against difficult cancers like leukemia, glioblastoma, kidney cancer, and triple-negative breast cancer.
اقرأ المزيد ←Scientists at UT Southwestern have uncovered a surprising new “master switch” that helps control how much cholesterol the liver sends into the bloodstream. The newly identified protein, HELZ2, works by shutting down the genetic instructions needed to produce apoB — a key building block of the cholesterol-carrying particles linked to clogged arteries and heart disease.
اقرأ المزيد ←Drinking nitrate-rich beetroot juice may do more than support heart health — it could actually reshape the bacteria living in the mouth in ways that help lower blood pressure in older adults. In the largest study of its kind, researchers found that older people who drank concentrated beetroot juice twice daily for two weeks experienced noticeable blood pressure reductions, while younger adults did not.
اقرأ المزيد ←A mysterious little blue octopus discovered nearly 6,000 feet beneath the waters of the Galápagos Islands has officially been identified as a brand-new species. About the size of a golf ball, the tiny creature stunned researchers during a deep-sea expedition when it suddenly appeared on camera, crawling across the ocean floor near an underwater mountain.
اقرأ المزيد ←A mysterious particle from deep space has scientists buzzing after the most energetic neutrino ever detected slammed through the Mediterranean Sea. Now, researchers think they may have identified the cosmic “culprits” behind it: blazars — supermassive black holes blasting jets of matter straight toward Earth.
اقرأ المزيد ←By analyzing over 400,000 Reddit posts, researchers discovered that users of popular GLP-1 weight-loss drugs frequently discussed unexpected symptoms like menstrual irregularities, chills, and hot flashes. The findings suggest AI could turn social media into a powerful early-warning system for spotting side effects that clinical trials may miss.
اقرأ المزيد ←Scientists have uncovered the oldest known hand-held wooden tools ever used by humans — and they’re an astonishing 430,000 years old. Buried for hundreds of thousands of years at an ancient lakeside site in Greece, the carefully carved wooden objects reveal that early humans were far more skilled and resourceful than once believed.
اقرأ المزيد ←Scientists have cracked open the “black box” of feline cancer in a landmark study that genetically analyzed nearly 500 cat tumors from around the world. The research uncovered striking similarities between cancers in cats, dogs, and humans — including shared cancer-driving genes tied to aggressive breast cancers.
اقرأ المزيد ←For millions battling chronic nerve pain, even the softest touch can feel agonizing — but scientists may have uncovered a radically new way to stop it at the source. Researchers at Duke University found that damaged nerves can be revived by supplying them with healthy mitochondria, the tiny energy producers inside cells.
اقرأ المزيد ←Researchers found that adding bananas to berry smoothies can dramatically reduce the body’s ability to absorb healthy flavanols. The surprising discovery shows that even simple food combinations can change how much nutrition your body actually gets.
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