Dog
The dog (Canis lupus familiaris) is a domesticated mammal of the family Canidae and a subspecies of the gray wolf. It was the first species to be domesticated by humans, with evidence suggesting domestication occurred over 15,000 years ago. Dogs have been bred into a wide variety of breeds, each exhibiting distinct physical and behavioral traits, and they play numerous roles in human society, including companionship, work, and service.
