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 ...

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.

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 ...