Magnetosomes in magnetotactic bacteria. (IMAGE) University of Tokyo Caption Like a compass, the iron-containing magnetosomes in the bacteria align towards the Earth’s magnetic polls, compelling them to move in a north or south direction depending on which hemisphere they inhabit. Credit 2017, Toshitsugu Yamazaki Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.