Video: Working Dogs Go Beyond "Man's Best Friend"

What's This? SHARE Digg StumbleUpon Reddit RELATED Dogs Smell Cancer in Patients' Breath, Study Shows Dog Genome Mapped, Shows Similarities to Humans National Geographic Channel: Dog Whisperer February 17, 2006—They're tireless defenders, life-saving rescuers, and even amateur therapists. Learn how cultures around the world have benefited from the efforts of working dogs, and see what makes the animals so good at what they do. MOST VIEWED NEWS 2012: Six End-of-the-World Myths Debunked APOCALYPSE PICTURES: 10 Failed Doomsday Prophecies PICTURES: "Extraordinary" Ancient Skeletons Found NEWS FEEDS      Get our news delivered directly to your desktop—free. How to Use XML or RSS