The article specifies where they think the organism lived. > Data from the study strongly suggest that LUCA lived in the area where ancient seawater, dense wit

The article specifies where they think the organism lived. > Data from the study strongly suggest that LUCA lived in the area where ancient seawater, dense with positively charged particles called protons, mixed with warm alkaline vent fluid, which contained few protons. The difference in the concentration of protons across these two environments enabled protons to flow into the cell, driving the production of a molecule called adenosine triphosphate (ATP) which powered the growth of cells, just as it does today.