The primary role of the Earth's magnetic field is to protect the planet from harmful cosmic radiation and charged particles emitted by the sun. This field, generated by the movement of molten iron in the Earth’s outer core, creates a magnetosphere that deflects solar wind and shields the atmosphere from erosion. Consequently, the magnetic field plays a critical role in maintaining conditions conducive to life by preserving the integrity of the atmosphere. Moreover, it influences animal navigation and migration patterns, particularly in species that rely on geomagnetic cues.