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Latest Science News -- ScienceDaily
Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate and environment, computers, engineering, health and medicine, math, physics, psychology, technology, and more -- from the world's leading universities and research organizations.
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The 10,000-mile march through fire that made dinosaurs possible
Despite Earth's most devastating mass extinction wiping out over 80% of marine life and half of land species, a group of early reptiles called archosauromorphs not only survived but thrived, venturing across the supposedly lifeless tropics to eventually evolve into the dinosaurs and crocodiles we know today. Armed with a groundbreaking model dubbed TARDIS, researchers have reconstructed their ancient dispersal routes, revealing how these resilient reptiles conquered a hostile, post-apocalyptic Earth.
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Sleep-in science: How 2 extra weekend hours can calm teen anxiety
Teens might finally have a good reason to sleep in on weekends within limits. A new study reveals that teenagers who get up to two extra hours of sleep on weekends show fewer anxiety symptoms than those who don t. But go beyond that sweet spot, and symptoms can actually increase.
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Johns Hopkins blood test detects tumor dna three years early
Researchers at Johns Hopkins found that fragments of tumor DNA can appear in the bloodstream up to three years before a cancer diagnosis, offering a potentially revolutionary window for early detection and treatment.
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Running rewires your brain cells—igniting memory-saving genes against alzheimer’s
Scientists have uncovered how exercise directly influences brain health in Alzheimer's disease by pinpointing the exact brain cells affected. Using cutting-edge RNA sequencing and mouse models, researchers identified changes in specific cells like microglia and a novel type of astrocyte after exercise.
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New MIT study reveals how biofilms help stop microplastic build-up
Where do microplastics really go after entering the environment? MIT researchers discovered that sticky biofilms naturally produced by bacteria play a surprising role in preventing microplastics from accumulating in riverbeds. Instead of trapping the particles, these biofilms actually keep them loose and exposed, making them easier for flowing water to carry away. This insight could help target cleanup efforts more effectively and identify hidden pollution hotspots.