A wolfdog (also called a wolf–dog hybrid or wolf hybrid) is a canid hybrid resulting from the mating of a gray wolf (various Canis lupus subspecies) and a dog (Canis lupus familiaris). The term “wolfdog” is preferred by most of the animals’ proponents and breeders because the domestic dog was taxonomically recategorized in 1993 as a subspecies of Canis lupus, which includes gray wolves. (By extension, a wolfdog is also a member of Canis lupus.) The American Veterinary Medical Association and the United States Department of Agriculture refer to the animals as wolf–dog hybrids. Rescue organizations consider any dog with wolf heritage within the last five generations to be a wolfdog, including some established wolfdog breeds.
The domestic dog (Canis lupus familiaris)is a subspecies of the gray wolf (Canis lupus), a member of the Canidae family of the mammalian order Carnivora. The term “domestic dog” is generally used for both domesticated and feral varieties. The dog was the first domesticated animal and has been the most widely kept working, hunting, and pet animal in human history. The word “dog” can also refer to the male of a canine species, as opposed to the word “bitch” which refers to the female of the species.