What's in a wolf's howl -- a calling card, a warning, or an invitation? Hear the call of the wild, find out how wolves are making a comeback, and discover the ancient connection between dogs and wolves at this Web site.
The domestic dog (Canis lupus familiaris) is a subspecies of the gray wolf (Canis lupus), a member of the Canidae family of the mammilian order Carnivora. The term "domestic dog" is generally used for both domesticated and feral varieties. The d...