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. Author manuscript; available in PMC: 2017 Sep 7.
Published in final edited form as: Annu Rev Neurosci. 2017 Jul 25;40:231–250. doi: 10.1146/annurev-neuro-072116-031312

Figure 1.

Figure 1

Different cues derived from the earth’s magnetic field. The magnetic field of the earth originates from the Southern Hemisphere, extends into the atmosphere and space, and then pierces into the Northern Hemisphere. Organisms may gain cues regarding their position and orientation on earth by detecting distinct aspects of the geomagnetic field in order to guide their behaviors. This includes sensing the intensity of the magnetic field (a), the inclination of the magnetic field (b), and the polarity of the magnetic field (c).