The term used for organisms capable of living in extreme environments is extremophiles. Extremophiles are a diverse group of organisms that thrive in conditions that would be hostile or lethal to most life forms. These environments can include extreme temperatures (thermophiles), high salinity (halophiles), high acidity (acidophiles), or extreme pressure (barophiles). Studying extremophiles is important for understanding the limits of life on Earth and has implications for the search for extraterrestrial life, as well as applications in biotechnology and industry.