Dark patches on Venus could be signs of microbial life

Venus once had water but became inhospitable due to a greenhouse effect. Recent studies suggest microorganisms might exist in Venus' lower cloud layer, where conditions are more Earth-like. Dark patches on Venus could be microbial blooms. Some Earth bacteria can survive in high altitudes and harsh environments, hinting at the possibility of life in extreme conditions on Venus.

What implications does the presence of microorganisms on Venus have for our understanding of life in extreme conditions?

In what ways can certain bacteria on Earth survive in harsh environments?