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4Biology is a focused search engine built for biology students, researchers, educators, and lab managers. We combine multiple indexes, curated sources, and AI tools to surface publications, protocols, datasets, suppliers, and learning resources that matter to life scientists. Use the site to save time, find specialized resources, and get context-specific search results not optimized for general web traffic. Part of the 4SEARCH network of topic specific search engines.
Latest Articles
Touch-Sensing Piezo Channels Found to Steer the Cells That Build Our Teeth
1+ hour, 42+ min ago (710+ words) Researchers at the University of Maryland Baltimore have shown that the mechanosensitive ion channels Piezo1 and Piezo2 drive the terminal differentiation of odontoblasts into dentin-forming cells by modulating Wnt signaling, a finding that could inform therapies for dentin defects....
New Algorithm Simulates Gene Frequency Histories Exactly, Even as Populations Change Size
1+ hour, 42+ min ago (605+ words) Researchers have unveiled EWF 2.0, an exact simulation algorithm that generates statistically perfect allele frequency trajectories under the Wright–Fisher diffusion even when population size changes over time, with no added computational cost....
Hidden Genome: Tiny Proteins Mapped Across the Parasite Behind Trichomoniasis
3+ hour, 31+ min ago (590+ words) Researchers have built the first comprehensive atlas of 918 microprotein candidates in Trichomonas vaginalis, confirming translation of 103 of them and finding that most bear no similarity to human proteins....
New Multi-Reflecting Mass Spectrometer Reads Blood Chemistry With Unprecedented Precision
5+ hour, 18+ min ago (743+ words) Identifying the thousands of small molecules circulating in human blood has long been one of the most stubborn bottlenecks in modern biology....
A Tiny Glycine Repeat May Have Helped Mammals Grow Hair, Study Suggests
5+ hour, 50+ min ago (615+ words) Hair is one of the defining features of mammals, setting us apart from birds, reptiles, amphibians, and fish, yet the evolutionary origins of fur, wool, and whiskers remain one of the more intriguing puzzles in vertebrate biology....
Epigenetic Clocks Pass a Real-World Test in Rural West Africa
6+ hour, 42+ min ago (679+ words) Deep inside the chemical tags that decorate our DNA lies a ticking record of how fast we are truly aging. Scientists call these molecular timekeepers epigenetic clocks, and for more than a decade they have been used to estimate biological…...
Engineered Plant Immune Receptors Turn Viral Proteases Into Suicide Switches
7+ hour, 56+ min ago (74+ words) Plant scientists have unveiled a strikingly elegant strategy that turns the very weapons pathogens rely on into the trigger for their own destruction. A recent study, highlighted in a commentary published in the journal Stress Biology by Shan Liu, Yanping…...
Water Bears’ Survival Secrets Point to Convergent Evolution in Stress Proteins
9+ hour, 47+ min ago (55+ words) Tardigrades, the microscopic eight-legged animals famously nicknamed water bears, have long astonished scientists with their ability to survive conditions that would kill almost any other organism. They shrug off desiccation, endure extreme temperatures, tolerate crushing pressures and ionizing radiation, and…...
Machine Learning Meets Classical Statistics to Catch the Subtle Fingerprints of Polygenic Adaptation
10+ hour, 52+ min ago (55+ words) One of the most stubborn problems in modern population genetics is not finding evidence of adaptation in the genome, but finding the kind of adaptation that leaves almost no trace. When a single gene is under strong selection, the genomic…...
Scientists Build a 50,000-SNP Genetic Toolkit to Decode and Breed the Eurasian Steppe’s Vital Sheepgrass
12+ hour, 29+ min ago (675+ words) On the vast Eurasian steppe, a hardy perennial grass known as sheepgrass (Leymus chinensis) anchors entire ecosystems and sustains livestock across millions of hectares. Yet despite its enormous ecological and agricultural importance, sheepgrass has remained stubbornly resistant to the genomic…...