It's Crazy Hair Day at Sally and Nick's school, and the kids can't pick a style to wear. Curly or straight? Long or short? It's too hard to choose--until the Cat in the Hat arrives with his Wig-o-lator--a machine that allows the kids to "try on" the hairstyles of a yak, a fur seal, and a porcupine--with comical (and educational) results! Learn that hair is not just for show--it keeps yaks warm and seals dry, and porcupines from becoming a meal!