Straight from Letterman, Septuagenarian Ruth Regina makes WIGS FOR DOGS! Why wigs? Because it's the dog's time, according to this charismatic grandmother-type. She's been the wig maker to the stars with clients like Heidi Klum and "J-Lo." Also this week on Animal Radio, MySpace for Dogs and your State Bird and Jack Hanna. This is the full two-hour show.