Find tips for selecting the right dog breed size for your lifestyle and learn about the importance of training and socialization.

New research finds a mutation that suggests the more diminutive canines’ DNA dates back to ancient wolves. By James Gorman Big dogs get all the glory. I don’t have a peer-reviewed paper to prove it, ...

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 ...