Animal magnetism: Bacteria may help creatures sense Earth's magnetic fields

An intriguing theory explains animals' magnetic sense.

Credit: PedroNevesDesign/designer_an/Shutterstock/Big Think
  • Some animals can navigate via magnetism, though scientists aren't sure how.
  • Research shows that some of these animals contain magnetotactic bacteria.
  • These bacteria align themselves along the magnetic field's grid lines.
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