Some people train their entire lives to play Division 1 college football. Others, like former SEAL Damian Jackson, have.
A Dog's Nose - The Best Way to Find IEDs
A dog's sense of smell is 100,000 more sensitive than a human's. That's why the U.S. military uses them to detect improvised explosive devices from long distances. From: SEAL DOG http://bit.ly/1XSUkEZ