I have read different posts above in this thread, and someone didn't even know that dogs could have cancer. I didn't know it either but now I know how common this disease is among our pets.
Yes, They do have cancer and even other animals might have that kind of disease aswell. Good thing there's project like this that focus on animal disease . It's best if they will not just focus on Cancer, there are other disease that is also Fatal for dogs like Parvovirus which is airborne and more contagious.