Legged robots are machines designed to move using legs, mimicking the way animals and humans walk. They can navigate various terrains, making them useful for tasks in environments where wheeled robots may struggle, such as uneven ground or stairs. These robots often use sensors and algorithms to maintain balance and adapt their movements. Many legged robots are inspired by biomechanics and animal locomotion, allowing them to perform complex movements. Notable examples include Boston Dynamics' Spot and MIT's Cheetah, which showcase advanced capabilities in agility and speed. Researchers continue to explore their potential applications in fields like search and rescue and exploration.