Roger A Caras

Writer, reporter, and animal rights advocate Roger Caras. Caras has written more than 50 books on pets and wildlife. His latest is called "A Dog Is Listening: The Way Some of Our Closest Friends View Us." Caras recently left his longtime position as a corespondent with ABC news in order to become president of the American Society for the Prevention of Cruelty to Animals. (Interview by Marty Moss-Coane)