A microorganism, especially an archaean, that lives in conditions of extreme temperature, acidity, alkalinity, or chemical concentration.
- Even right here on Earth, new categories of organisms, collectively called extremophiles, thrive in conditions inimical to human beings.
- However, for many poorly studied microbes, such as the increasing number of completely sequenced extremophiles, this approach may provide valuable information on their ecology that cannot be obtained otherwise.
- Studies of extremophiles have revealed that terrestrial life occupies virtually every imaginable habitat where liquid water, chemical nutrients, and simple forms of energy coexist.
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