Geomagnetic Field Orientation (IMAGE) University of Würzburg Caption Looking for the nest entrance, Desert Ants use the geomagnetic field for orientation (black). This can be concluded from experiments, in which the geomagnetic field was artificially rotated (red). Credit Graphic: <I>Current Biology</I> Usage Restrictions None License Licensed content 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.