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Meet Luca, the Ancestor of All Living Things
William F. Martin says that the Last Universal Common Ancestor can be traced back to deep sea vents like this one off the Galpagos.
Credit: Universal History Archive/UIG, via Getty Images
A surprisingly specific genetic portrait of the ancestor of all living things has been generated by scientists who say that the likeness sheds considerable light on the mystery of how life first emerged on Earth.
From The New York Times
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