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NICOLLE R. FULLER / TOPIC MAGAZINE / SCIENCE PHOTO LIBRARY NICOLLE R. FULLER / TOPIC MAGAZINE / SCIENCE PHOTO LIBRARY
Heat and sulphur extremophiles, illustration. Extremophiles are microbes that live in extremes of radiation, cold, heat, pressure, drought, acidity and salinity. The inset shows heat and sulphur extremophiles in Yellowstone National Park, USA. The bacterium shown here is Thermus aquaticus, which can survive temperatures up to 80 degrees Celsius.
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