This is Stewie, the Aussie, who belongs to Dina Zaphiris, founder of InSitu Foundation, a 501(c)3, dedicated to training dogs to detect early stage human cancer. Here, Stewie is fully trained, and exhibits a beautiful, clean and confident alert (a "paw and sit") at slot 1 containing the correct cancer sample. There are healthy controls in all of the other slots. Stewie is one of our best dogs, along with German Shepherd Schatzi. That's why they made all of the videos!!