A "perro" is the Spanish word for "dog," a domesticated mammal known for its loyalty and companionship. Dogs belong to the family Canidae and are often referred to as "man's best friend." They come in various breeds, sizes, and colors, each with unique characteristics and temperaments. Perros are commonly kept as pets and serve various roles, including working dogs, therapy animals, and service animals. They are known for their ability to learn commands and perform tasks, making them valuable in many settings, such as search and rescue and assistance for people with disabilities.