The animal often kept as a pet and known for its bark is the dog. Dogs are domesticated mammals belonging to the Canidae family and are renowned for their loyalty and companionship. Known as "man's best friend," they have been bred for various roles, including companionship, protection, herding, and hunting. With a vast array of breeds, dogs come in diverse sizes, shapes, and temperaments, allowing them to fit into different lifestyles and environments. Their sociable nature, intelligence, and ability to form strong bonds with humans make them one of the most popular pet choices worldwide.