Riley is an 11-year-old Pit Bull/Boxer mix in Milwaukee, WI, who needs $2,000 for a bone marrow transplant.

Riley was a starving stray who became a remarkable service dog. When people refer to me as his "mom," I correct them, because it's more like a partnership. We are equals who happen to be different species. We know each other's foibles and secrets. We have saved each other's lives on more than one occasion. We sleep in the same bed. We have fights, but we always come back to each other. That sounds like a partnership to me. He's been there for me when no one else has been. Now that he's sick, I want to do the same for him. I will give him the best life I can for as long as I possibly can. I owe him nothing less.