Humanoid robots are machines designed to resemble and mimic human behavior and appearance. They are often equipped with advanced sensors and artificial intelligence, allowing them to interact with people in a more natural way. Examples include robots like ASIMO and Sophia, which can perform tasks ranging from simple movements to complex conversations. These robots are used in various fields, including healthcare, education, and entertainment. Their ability to engage with humans makes them valuable in settings such as robotic therapy and customer service, where they can provide assistance and companionship to those in need.