A recent study has uncovered clues about the roots of complex life on Earth, and the findings are providing insight into the conditions required for life to evolve beyond simple organisms. By studying the genomes of bacteria and archaea, scientists have realized that the common ancestor of all complex life had the genetic potential to make an array of molecules and proteins. This sheds light on the environmental conditions that were required for the emergence of complex life. The findings may also help us understand how life could have evolved elsewhere in the universe.

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source: Phys.org