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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
Living Near Livestock Farms Linked to Drug-Resistant Genes in Household Dust
6+ min ago (770+ words) A large metagenomic study of Iowa homes finds that bedroom dust contains more antimicrobial resistance genes when residences sit closer to intensive livestock operations....
Wild Rice Gene Recruits Nitrogen-Fixing Bacteria to Boost Crop Efficiency
6+ min ago (644+ words) Researchers have shown that a single receptor-like kinase gene inherited from wild rice can restore nitrogen-fixing root bacteria lost during domestication, boosting nitrogen-use efficiency and yield traits in cultivated rice....
Ancient Jumping Genes Help Explain How DNA Variants Shape the Human Cortex
42+ min ago (777+ words) A massively parallel reporter assay of 9,092 cortical-structure-associated variants reveals that Alu retrotransposons, Wnt signaling and transcription factor expression jointly determine how noncoding DNA shapes the human cortex....
Treatment pulses reshape nutrient landscapes and decide whether resistant mutants escape
29+ min ago (600+ words) A yeast-based therapy-mimicry assay paired with a digital twin reveals that intermittent treatment pulses control resistance escape by reshaping spatial nutrient gradients, defining a narrow therapeutic sweet spot....
New Matrix Method Captures Selection at Genes With Many Alleles
29+ min ago (685+ words) Researchers have developed a matrix-based framework that models and estimates selection at multiallelic loci, capturing regimes such as heterozygote advantage directly from allele frequency time-series data....
Fungal Genome Guard Turns Out to Be a Secret Engine of Gene Evolution
1+ hour, 5+ min ago (590+ words) A population-scale genomic study of Neurospora crassa shows that the fungal defense mechanism RIP pervasively mutates single-copy functional genes, revealing an unexpected role in gene evolution....
Hidden Bats of a Remote Atlantic Island Revealed by DNA and Sound
1+ hour, 48+ min ago (682+ words) A combined genetic and acoustic survey has confirmed two bat species on the remote Azorean island of Flores, including the first record of the endemic Azorean bat there....
Ancient Giant Foraminifera Crossed the Pacific Before a Colliding Seaway Wiped Them Out
1+ hour, 44+ min ago (56+ words) Micro-CT scans of 1940s type specimens show that Miogypsinella foraminifera migrated from the Indo-Pacific to Central America before the restriction of the Indonesian Seaway and the drowning of Southeast Asian carbonate platforms drove them extinct. News Source: Violet Maxwell. (October 8, 2026). Ancient…...
Salt Stress Reveals Hidden Genes That Set the Pace of the Fruit Fly Heart
2+ hour, 2+ min ago (741+ words) A genome-wide study in 154 fruit fly lines shows that dietary salt stress unmasks cryptic genetic variation that reshapes heart rate through conserved ion transport, proteostasis and stress-response genes....
Chemical Fingerprints in Antarctic Mud Reveal 200 Years of Growing Sea Ice in the Ross Sea
1+ hour, 53+ min ago (583+ words) Sedimentary biomarkers and diatom fossils from the southwestern Ross Sea reveal that sea ice duration has increased over the past 200 years and provide new chemical tools for reconstructing past phytoplankton communities....