The Labrador retriever has reigned supreme as the most popular dog in the United States for 31 years, according to the American Kennel Club, which describes the breed as friendly, active and outgoing.

The largest-ever study of dog behavior, tracking more than 47,000 pets, reveals how breed, size, sex, and age shape canine traits. It provides insights that could help identify early signs of illness ...

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

Your dog’s behaviour probably isn’t due to its breed, according to a large-scale genetic analysis. The findings suggest that stereotypes associated with certain breeds have little basis. Kathleen ...