Did Cellular Life Begin Twice? New Study Points to Two Independent Origins

Early metabolism may have begun as a mix of metal and enzyme catalysis before bacteria and archaea independently evolved into free-living cells. Four billion years ago, the chemistry that eventually became life may have been unfolding around hydrothermal vents, where naturally occurring metals helped drive reactions before cells possessed the full machinery they use today. [...]

from SciTechDaily https://ift.tt/rj9KYp8