Figure 2: Inclination of the magnetotactic bacteria that move in the direction of the Earth’s magnetic field. While oxygen is vital to humans, it is abrasive and harmful to many bacteria. For this reason, magnetotactic bacteria have developed a surprising method in which the use the Earth’s magnetic field like a compass to go as deep into the ground as possible. Almost all of them are anaerobic bacteria and live in conditions where the oxygen level is very low. For this reason, they prefer oxic-anoxic interfacial or anoxic areas. This is the most important characteristic of MTB (3).