dogs with osteosarcoma usual only have five months to live, but it hasn't claimed harley yet, thanks to a new vaccine. "the fact that these dogs are living, um, two, three, four, five times longer than the length they were expected to live is remarkable." what's even more exciting to doctors at penn vet is the logical next step, since these treatments work for dogs with cancer. ".then we will be metastatic disease in children, and that is an amazing, amazing thing!" because dogs and humans share so many biological similarities, researchers think the vaccine that helped harley might also help a child with the same cancer. they're developing a protocol for a clinical trial to present to the f-d-a. "you're going to be putting the tv on someday and there's going to be some little kid standing there saying 'you know i'm still alive because of harley.'" "i mean if it c c help a child and my harley, was part of it, you know, that's just amazing to me." harley's owners are savoring every minute they have with him but they hope his legacy lives on by eventually giving a child a fighting chanc