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LUCA, The 4.2 Billion-Year-Old Grandparent Of All Life TodayLUCA, short for Last Universal Common Ancestor, is believed to be the single-celled organism from which all life on Earth descended. Estimated to have existed around 4.2 billion years ago ...
The mystery of life’s beginnings has long captivated scientists. Central to that search is LUCA—the last universal common ...
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