Nesting refers to the behavior of certain animals, particularly birds, where they create a safe and secure place to lay their eggs and raise their young. This process often involves gathering materials like twigs, leaves, and mud to build a structure that provides protection from predators and harsh weather. Different species have unique nesting habits, with some building elaborate nests while others may use simple depressions in the ground. In addition to birds, nesting can also be observed in other animals, such as mammals and reptiles. For example, sea turtles dig holes in the sand to lay their eggs, while mice create nests in hidden areas to keep their young safe. Nesting is a crucial part of the reproductive cycle for many species, ensuring the survival of their offspring.