When it comes to dogs, they are not called man's best friend just for the sake of it: dogs have found good use in various ways by which they contribute to the quality of human life, especially to improve it.
You know how helpful a blind dog can be - not an actual blind dog, but one that helps to lead a blind person; you know how entertaining they can be on the big screen, and in circus display, and even in the home - how the dog could very easily be your only companion because it is the only one who will not talk back at you or push you away.
But do you know that there are prostate cancer dogs and that dogs also have use in the treatment of prostate type of cancer! How? They are used in research.
Alright, don't go losing it but think about it? See, dogs, apes, and other mammals are that closely similar to human beings that a lot of the organs in their bodies have more or less the same physiology.
As a result, they are almost responsive to the same diseases and ailments, most specifically, cancers in the prostate organs of dogs.
Yes, you read that right, there exists prostrate cancer in dogs and prostate problems dogs.
Prostate cancer in dogs more or less follows the same bodily processes as it does in human beings, making them ideal for the tests that have to be carried out in order to find better treatments and cure for the condition.