Recently, a microbe that is able to digest cellulose was discovered in a hot spring with an average temperature of 95°c. predict the group to which this microbe most likely belongs.

Extremophile microbes are able to survive in many extreme conditions around the world. Pyrolobus fumarii is a microbe from the family of Archaea that is well suited to extreme temperatures. Pyrolobus fumarii thrives by living next to deep sea hydrothermal vents, which provides a similar habitat to hot springs.