Sadly, Dr. Berens will reap only weariness and disappointment so long as he continues to study dog cancer in order to cure human cancer. Even if a treatment is found to work on dogs, it won't cure a single human being. Ask any veterinarian if a human could use the same drugs and treatment given to dogs. It's a nonsensical idea born of a false ideology. It doesn't matter if research is done on beagles or chimps or mice.
Scientists know that while morphine is a stimulant in dogs, it has the opposite effect in people.
Vets know that while humans need to eat vitamin C, dogs produce all of their own. All medical advances of the past have come from the careful observation of human beings, be it at the patient's bedside, studying human populations and the patterns of lifestyle and disease, learning from autopsies and so forth. Scientists already know that smoking, eating animal products, exposure to hazardous chemicals, pollution and stress lead to cancer. If Dr. Berens switches to preventing human cancer instead of wasting time, money and lives in the laboratory, that will be the day he enters the path to saving the very first human life yet in his entire career. Although I personally would like to see animal experimentation end in my lifetime and I believe that it is wrong to kill animals for human benefit, I do appreciate the other perspective and realistically I know that animal research has benefited my life and the lives of my loved ones.