Companion robots are designed to provide social interaction and companionship to people, particularly the elderly or those with disabilities. These robots can engage in conversations, play games, and even assist with daily tasks, helping to reduce feelings of loneliness and isolation. Many companion robots use artificial intelligence to learn from their interactions and adapt to the preferences of their users. Some popular examples include PARO, a therapeutic robot shaped like a baby seal, and Aibo, a robotic dog that responds to commands and exhibits playful behavior.