Wolf DNA seems to have influenced the size, smelling power and even personality of modern dog breeds, scientists said.

The two subspecies split about 20,000 years ago. But since then, they may have interbred more often than Smithsonian ...

Dogs were the first of any species that people domesticated, and they have been a constant part of human life for millennia.

Genomic analysis of more than 2,700 dog and wolf genomes shows that most modern dogs carry small traces of post-domestication ...