The ASPCA estimates that approximately 3.1 million dogs enter animal shelters across the country every year. These dogs come in all shapes, sizes, ages, and breeds – some get adopted while others may end up being euthanized. Unfortunately, most of these shelters only see senior dogs adopted 25% of the time versus the 60% younger dogs, and puppies that get adopted. Bringing home an older dog can be rewarding, not only for you but for the dog itself. Dogs age differently than humans do. For most of us, we take the number of years since the dog’s birth and multiply it by seven to get their approximate age. There are…