A new study proposes that life on Earth may have originated independently on two separate occasions. The research suggests that the two primary lineages of life, bacteria and archaea, might have each developed metabolic processes on their own. This theory challenges the conventional understanding of a single origin for all terrestrial life. AI
RANK_REASON The cluster contains a scientific paper discussing a new hypothesis about the origin of life. [lever_c_demoted from research: ic=3 ai=0.0]
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