Birds Can See Earth's Magnetic Fields, And Now We Know How That's Possible

9/11/2018

This article discusses a study that reveals how certain bird species have the ability to see and navigate using Earth's magnetic field. Scientists have discovered that birds possess a special photoreceptor protein called cryptochrome 4 (Cry4) in their eyes, which allows them to perceive magnetic fields. The researchers found that when this protein is exposed to blue light, it becomes activated and forms a chemical reaction that enables birds to "see" the magnetic field lines. This ability helps birds navigate during long migrations and find their way home. The findings offer valuable insights into the incredible adaptability and navigation skills of birds.

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