17/02/2023
How animals use magnetic field for their navigation?
The specific biological mechanism by which navigate using the Earth’s magnetic field is not yet fully understood, but there are several theories as to how it may work.
One theory is that the magnetic particles in the animals’ bodies, such as iron or magnetite, are able to align with the Earth’s magnetic field. This alignment triggers changes in nerve impulses or other biological processes that allow the animal to sense the direction of the magnetic field.
Another theory is that the magnetic particles within the animal’s body act as tiny compasses, allowing the animal to determine the direction of the magnetic field. These magnetic particles are thought to be located within specialized cells known as magnetoreceptors, which are found in various parts of the animal’s body, such as the beak, head, or inner ear.
Additionally, some studies have shown that specialized protein molecules, known as cryptochromes, may play a role in magnetoreception. These proteins are thought to respond to changes in the magnetic field, allowing the animal to detect its direction and intensity.