The largest-ever study of dog behavior, tracking more than 47,000 pets, reveals how breed, size, sex, and age shape canine ...

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

An international team led by researchers has identified a genetic variant that is a major contributor to small size in dogs. The researchers explored the genetic basis for size variation among dogs by ...

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, ...