text: Hyperthermophiles are a subset of extremophiles , micro-organisms within the domain Archaea , although some bacteria are able to tolerate temperatures of around 100 Â C ( 212 Â F ) , as well .
simplified: Hyperthermophiles are mostly in the Archaea domain , but some bacteria are able to tolerate temperatures of around 100 Â C ( 212 Â F ) as well .