Breed is a weak predictor of dog behavior, according to a study published Thursday in Science. Researchers sequenced the DNA of 2,155 dogs to identify their ancestry and surveyed owners on the dogs’ ...

Domestication and breeding by humans has affected dogs' abilities to use facial expressions to convey their emotions, a study has found. Researchers at Durham University discovered that modern dogs ...

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 ...

For the past couple of centuries, humans have been breeding dogs to meet specific physical characteristics -- to make Golden Retrievers fluffy, to make Rottweilers muscular, or to make Chihuahuas tiny ...