"Man's best friend" continue to surprise humans with their loyalty, compassion, and fearlessness. A cornerstone to a canine's psychology is its sense of purpose—simply put, dogs like to have a job.
Wounded warrior K-9 helps Army sergeant after return from Afghanistan.
Meet Darwin, an avalanche search-and-rescue dog that has trained his entire life to save lives. With his keen sense of smell, he can find people trapped deep under snow.
Rob has hundreds of sheep to herd daily. Coming from a long pedigree of Scottish border collies, he was born to do this job, and he relies on deep instinct to make quick decisions and swiftly outmaneuver the flock.
Odey the vizsla can sniff out danger better than most airport detection machines. As a member of the TSA's K-9 team, he works tirelessly to screen thousands of travelers each day to keep them safe from explosives.
A veteran performer shares his home with his canine co-stars in Reno, Nevada.