For centuries dogs have been used for hunting, farming and warding off danger, and in the 21st century, humankind is still turning to the canine world to save lives and offer protection. From disaster relief and border control to fighting crime and terrorism, in our brand new series, Blue Collar Dogs, you can meet the fearless mutts that truly are man's best friend.
Shattering traditional notions of what dogs can do, some animals have helped their human companions with various medical conditions. But can Yorkshire Terrier Poppy really sense when her diabetic owner's sugar levels are getting dangerously low?
The dogs of the U.S. Customs and Border Protection team are vital in the battle to keep America safe. Using their extraordinary noses, these canny canines detect smuggled narcotics, concealed humans, and even locate victims stranded in the...