Can Humans Sense Earth's Magnetism? Human Retina Protein Can Function as Light-Sensitive Magnetic Sensor

For migratory birds and sea turtles, the ability to sense Earth's magnetic field is crucial to navigating the long-distance voyages these animals undertake during migration. Humans, however, are widely assumed not to have an innate magnetic sense. Research published in Nature Communications this week by faculty at the University of Massachusetts Medical School shows that a protein expressed in the human retina can sense magnetic fields when implanted into Drosophila, reopening an area of sensory biology in humans for further exploration.