Book excerpt: Bismark the Buffalo is grumpy and unlovable until his friends teach him how to laugh and show him that wearing colorful underwear can be great fun. Zachary Zebra and Orfo Orangutan love underwear—all colors, prints, and styles! Every year they go together to the World's Greatest Grassland Underwear Fair. But Bismark Buffalo is always sad and grumpy. Of course, he does not like underwear. The grassland animals feel sorry for Bismark. But then they get an idea—an idea about underwear and an idea about Bismark.