The tiny bacteria-like organisms classified as archaea were only classified in the 1950’s, and then they were considered to be a group of relatively uncommon microorganisms that could be found in areas of extreme temperatures, acidity, salinity, or other unpleasant conditions. More recently, scientists have been able to use new biochemical technologies to show that, not only are they a totally separate form of life from the other kingdoms on Earth, but that they actually thrive in every environment... read more
