In an old post, I mentioned that 'man's best friend' was the only animal other than man to spontaneously develop PCa. Rodents do not develop PCa & have to be 'engineered' to become suitable models for PCa research.
Luckily for dogs, they are no longer the animal of choice for PCa studies.
I prefer to have cats, but I feel sympathy for Eros:
abc10.com/article/entertain...
-Patrick