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Scientists have discovered a new microscopic amoeba species, Incendiamoeba cascadensis, thriving in hot springs at California Lassen Volcanic National Park. Published in the journal Cell by Syracuse University researchers, the single-celled organism sets a new heat-tolerance record for eukaryotes, performing cellular division at temperatures up to 145.4 degrees Fahrenheit and remaining active up to 147.2 degrees Fahrenheit. Eukaryotes represent complex life containing membrane-bound nuclei, unlike heat-tolerant bacteria or archaea. This species outpaces previous eukaryotic records of roughly 140 degrees Fahrenheit held by specific algae and fungi. As the apex predator in its thermal habitat, the amoeba feeds on heat-loving bacteria while avoiding competition and predators. Researchers noted the organism utilizes shape-shifting, protective outer layers, and enhanced DNA repair gene activity to endure high temperatures. The discovery challenges existing biological assumptions regarding environmental constraints on complex cells, offering new insights into evolutionary biology and expanding scientific parameters for potential life in extreme environments on Earth and throughout the universe.

By Haya | JQJO News