Animal-assisted therapy (AAT) is an alternative or complementary type of therapy that involves animals as a form of treatment.[1] The goal of AAT is to improve a patient's social, emotional, or cognitive functioning.   Advocates state that animals can be useful for educational and motivational effectiveness for participants.[2] In a variety of settings such as prisons, nursing homes, mental institutions, animals are used to assist people with different disabilities. The most commonly used types of AAT are canine-assisted therapy and equine-assisted therapy. AAT is especially helpful in reducing the symptoms of psychological disorders, but most of the effects only last for a short period.