Study shows how they navigate using Earth's magnetic field
(NEWSER) - It's no wonder pigeons are renowned for their sense of direction: Their brains function like biological GPS units, say two researchers. As Nature explains, scientists already knew that pigeons used the Earth's magnetic field to get around, but the new study shows for the first time how specific parts of their brains process the information. The researchers think those brain signals come from the inner ear, though it's possible that receptors in their beaks and eyes also take in and pass along information, notes Popular Science . More»