The evolutionary significance of extreme thermophiles may be that they are modern descendants of very ancient cell lines dating back to a time when the planet was very warm.

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Extreme thermophiles are organisms that thrive in extremely hot environments, such as hydrothermal vents or geothermal springs. It is believed that these organisms may be modern descendants of ancient cell lines that developed during a time when the planet had a much warmer climate. Therefore, their existence today may provide insights into the early evolution of life on Earth.

The Evolutionary Significance of Extreme Thermophiles May Be That They