If a dog or cat gets hit by a car, poisoned or has been injured and bleeding, an emergency blood transfusion can save it’s life.  Where does this much needed blood come from?  Beth Davidow, of the Animal Critical Care and Blood Bank in Seattle, Washington says that most of it comes from healthy pets whose owners get them involved as community blood donors.  She says that many pet owners  are concerned that other animals have blood available if they really need it. To become a donor, a dog must be free of diseases, not on any medication and is willing to lie still for dog treats while it’s blood is drawn.  Cats can donate to but they must be anesthetized.  If you want your pet to help other pets in need, you can ask your vet to help you find a program in your area.