Microbes have been known to exist in the environment since the beginning of time. Some microbes are as old as Earth itself. They are an inherent element of life. Microbes are found everywhere, deep inside the Earth’s crust, in the polar caps and in all bodies of water. They are also found in plants, animals, humans, and they reside in your clothes and hair. Microbes have played a part in shaping the different habitats across the globe, and have even helped mold the evolution of many life forms.