Extremophile

An extremophile is an organism that is able to live or even thrive in extreme environments, such as extreme temperature, pressure, radiation, salinity, or pH level. Extremophiles are mainly species of microorganisms – bacteria and chiefly archaea, but also include some eukaryotes such as some fungi, and tardigrades.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 4.0

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