Magnetoreception is the ability of certain animals to detect the Earth's magnetic field and use it for navigation. This sense helps species like birds, turtles, and salmon find their way during long migrations. They can sense magnetic fields through specialized cells or proteins in their bodies. Research suggests that magnetoreception may involve cryptochromes, which are light-sensitive proteins found in the eyes of some animals. These proteins can react to magnetic fields, allowing animals to perceive direction and orientation. Understanding magnetoreception can provide insights into animal behavior and migration patterns.