Trained animals are those that have learned specific behaviors or tasks through a process called training. This training often involves positive reinforcement, where animals receive rewards for performing desired actions. Common examples of trained animals include dogs, which can learn commands like sit and stay, and horses, which can be taught to follow cues for riding. Many trained animals are used in various fields, such as service animals that assist people with disabilities, or therapy animals that provide comfort to those in hospitals. Additionally, some trained animals participate in performing arts or sports, showcasing their skills in entertaining ways.