Cages are enclosures made of various materials, such as metal or wood, designed to confine animals or objects. They are commonly used in zoos, laboratories, and homes to keep pets safe. Cages can vary in size and complexity, from small birdcages to large animal enclosures. In addition to their use for animals, cages can also serve practical purposes in industries, such as transporting goods or securing equipment. The design of a cage often considers the safety and comfort of the enclosed entity, ensuring adequate ventilation and space for movement, especially in the case of pets or wildlife.