Summary: Actress, author and filmmaker Isabella Rossellini unveils her new series of short films about motherhood in the animal kingdom, "Mammas," which airs on the Sundance Channel. See excerpts from the series. We travel to New Orleans for a chat with Ken Foster, founder of renowned pit bull rescue organization The Sula Foundation. Ken recently published a book about his affection for and commitment to the loyal and loving but often unappreciated breed, called "I’m A Good Dog." Music: “Home” by Pat Metheny; “Your Mother Should Know” by The Beatles
