All Life on Earth May Trace Back to a Single Ancestor and It's Far Older Than Scientists Once Believed
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All Life on Earth May Trace Back to a Single Ancestor and It's Far Older Than Scientists Once Believed
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Every organism living today shares a lineage that traces back to a single cell known as LUCA. Recent genetic analyses reveal that this universal ancestor emerged much earlier in Earth's history than previously thought. This discovery fundamentally alters our understanding of how quickly biological life can arise.