The dog, Canis familiaris, is a direct descendent of the gray wolf, Canis lupus: In other words, dogs as we know them are domesticated wolves. Not only their behavior changed; domestic dogs are ...

Dogs and wolves are able to produce viable offspring because they are the same species, and domestic dogs (Canis lupus familiaris) are actually a subspecies of wolf. Wolfdogs found in the United ...

Like the red wolf, it is distinguished from other Canis species by its larger size and less pointed features, particularly on the ears and muzzle. Its winter fur is long and bushy, and ...

MIGRATION: Although wolves can move freely between islands and mainland areas in southeast Alaska, geographic features such as mountain ranges and water barriers pose significant constraints to this ...