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Microbial ancestor of complex life was more sophisticated than previously thought, studies suggest
- March 5, 2026 at 9:40 PM
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Our single-celled ancestor lived in a world without plants, animals or oxygen-rich oceans. Yet, this seemingly simple microorganism took the first steps toward complex life. From this ancestor emerged all multicellular (complex) life as we know it today: from yeast to blue whales, collectively known as eukaryotes. These organisms are built from cells containing specialized structures, such as a nucleus and other specialized structures, each performing distinct functions.
Originally published at Phys.org