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 ...

Wolf-dog hybrids are bred by crossing domestic dogs with wolves, sometimes just a few generations back. They carry physical traits and instincts that set them far apart from standard breeds. These ...

Most pet dogs carry small fragments of wolf DNA, left behind after their long association with people. That genetic trace is usually silent, but new research suggests it may have helped shape how dogs ...