Video: Pigeons Found to Have "GPS" cells in Brain
Researchers at Baylor College of Medicine found pigeons have an internal "GPS" based on the earth's magnetic field. These birds appear to have a group of 53 cells that react to the angle and intensity of the magnetic field via a sensor that could be located in the inner ear. Scientists say that birds as well as other animals can sense the Earth's magnetic force and change migration routes accordingly.
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