NASCAR stock car racing superstar Greg Biffle serves as spokesperson for SPAY/USA, a nationwide network and referral service for affordable spay/neuter services and a program of the Animal League. Biffle is championing the prevention of unwanted litters, convinced that by raising awareness more pet owners will follow his lead and alter their pets, in hopes of leading to a dramatic decrease in shelter euthanasia, of which there are approximately 4 million each year. A passionate advocate for animals, Biffle has set an example by neutering and spaying his own dogs. (SpayUSA.org)