Hmmm, just read more about this 'announcement' and ( correct me if I'm wrong) it says they have found a microbe that lives in an arsenic rich environment in a thermal pool in USA. This microbe has substituted the essential phosphorous element with arsenic instead. The implication is that it makes life more likely to be seen in other hostile environments, opens the options up so to speak.
Living in arsenic ??!! Blimey !
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