The bird's right eye sees through the Earth's magnetic field

German scientists have recently discovered that birds can observe the Earth's magnetic field with their right eye, and rely on it for directions.

According to scientists, if blindfolded, birds will not be able to find effective directions, whereas if left blindfolded, they will still have a perfect orientation.

Scientists have long known that birds can sense the Earth's magnetic field and use magnetic fields to orient, especially in the winter when they have to migrate south to avoid cold.

Researchers found that birds could actually use the right eye to look at the magnetic field, while transmitting information to the left brain.

Birds take advantage of their normal vision to sense the light and darkness caused by the magnetic field map. When the bird turns its head, the darkness will change and the birds will take the visual model of darkness as a guideline for directional judgment.

Scientists believe that the molecule in the bird's retina when encountering Blu-ray will be in a flexible state, each molecule will have an unpaired electron and form a radical pair of molecules.

The appearance of the magnetic field affects the time required for pair pair radicals to restore their non-flexible state.

The visual, the light of the magnetic and dark maps have all changed, but the visual map has clear contours, while the magnetic field map gradually changes from morning to night.

Scientist Catherine Sitapute of the University of Goethe, Frankfurt (Germany) in charge of the research team discovered that when the feeling of magnetic fields is lost, the dark light map does not mean anything to birds because at that time they cannot distinguish What information is the visual map and which information is the magnetic field map.

Catherine Sitapute, the scientist, decided to experiment with Robin blindfolded birds with a veil (the veil consists of two sides, one is transparent metal, the other is plated metal, allowing 70% light). light can come in).

The scientists then placed Robin's bird in a funnel-shaped cage, which was swept with liquid. Birds can only fly out from a small door. If the bird hits the cage wall, it will spill the liquid.

The results showed that birds that do not wear veils or cover the left eye can fly easily out of the cage. In the meantime, the birds with the right eye blindly flew in the wrong direction and were hit by the wall.