Those tiny, fluffy dogs walking down the street may look cute but beware — they probably have some wolf in them. That is the discovery announced on Monday by U.S. scientists, who were surprised to ...

What happens when you combine breeds like a Bloodhound, Greyhound, and Mastiff? You get the rare Catahoula Leopard Dog—also known down south as the "wolf dog"—and their color markings are unlike any ...

Most pet dogs carry small fragments of wolf DNA, left behind after their long association with people. That genetic trace is ...