Besides all the love and joy we get from our four-legged friends, we get so much more. Dog lovers like to point out that their furry friends are the most loyal companions a person could ever need. That loyalty sometimes gets in between life and death. The greatest proof to the fact that the dog is human’s best friend are the numerous incredible stories of them saving lives. They work alongside with people, completing some very dangerous tasks: fire fighters, police officers, soldiers, customs officers, they all rely on their working dogs. Every day we hear new stories about incredible dogs that put their own life on the line to save the owner’s one. And how much do these animals help disabled and sick people, by being a part of a therapy, a guide or even being trained to detect blood sugar levels. Hopefully, soon dog’s incredible senses will help us conquer the terrifying disease called cancer.