But his roommate jogging nearby lost cell service. I was just screaming ... Kyle Prato, 24, was with his 7-month-old Australian Shepherd, Stryker, when the dog bolted, chasing after a duck.

German Shepherd is designed for power, while the Australian Shepherd thrives on speed ... Their protective instincts make them excel in jobs like security work, service dogs, and obedience courses.

Thousands of dogs. Hundreds of breeds. And just one top dog will be crowned at the Westminster Kennel Club show Tuesday night ...