The animal commonly referred to as a "man’s best friend" is the dog. Dogs have been companions to humans for thousands of years, serving various roles from hunting and herding to providing emotional support and companionship. Their loyalty, intelligence, and ability to understand human emotions contribute to their reputation as excellent pets. Dogs come in various breeds, each with unique characteristics and temperaments suited for different lifestyles. Their social nature and trainability make them invaluable not just for companionship but also in roles such as service animals, therapy animals, and working dogs in various capacities.