Weight-pull competitions keep surprising trainers, veterinarians, and judges. Verified results show small dogs hauling loads that look more like industrial equipment than their body size would suggest ...

Britney Imhof is no stranger to the Purina Incredible Dog Challenge competition. She has competed in the event with her older dog and now with her younger dog, a 3-year-old miniature American shepherd ...

PITTSBURGH—Lemon, a five-pound Chihuahua, waited at the starting line until her owner signaled “go,” then pulled a wheeled cart weighing 260 pounds down a 16-foot chute. Amid applause, the pint-size ...