How is magnetic material useful to monarch butterflies?

Magnetic materials are believed to play a crucial role in the navigation of Monarch Butterflies during their migratory journeys. Research suggests that these butterflies can detect the Earth's magnetic field, which helps them orient themselves and travel thousands of miles between breeding and wintering grounds. Certain proteins in their eyes may interact with magnetic materials, enabling them to sense magnetic fields and use this information to maintain a precise migratory path. This ability is vital for their survival as they navigate across vast distances.