That isn’t usually supposed to happen.

Most modern dog breeds have small amounts of wolf ancestry from long after dogs were domesticated, according to a new study. The wolf DNA isn't left over from when dogs and wolves diverged; instead, ...

Prehistoric wolf remains found on a Baltic island suggest that humans cared for wolves thousands of years before dogs fully emerged, according to a new study. Archaeologists found the remains, dated ...

DENTON, Mont. -- An animal previously believed to be a wolf-dog hybrid is actually just a wolf, a DNA test revealed. "The lab compared the animal's DNA with thousands of other DNA samples from wolves, ...

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 US scientists, who were surprised to find ...

Genetic testing revealed that the two-year-old animal, surrendered to the B.C. SPCA early this year, was 35.4 per cent gray wolf.