Right Up My Alley

Miami's zoo has a temporary exibit on excrement titled ``The Scoop on Poop,'' which invites visitors to explore the science of shit.
It was created by Clyde Peeling's Reptiland in Allenwood, (Pennsylvania). It's scheduled to appear at zoos in Philadelphia and Pittsburgh next year.
Stool sample models abound: hay-like football-sized balls from an elephant, kidney-bean-looking pellets from a porcupine and coal-like lumps coated with fur from a black bear.
Zoo officials and the exhibit's creators say it's educational, not just gross. Visitors can smell the stench of flowers that mimic dung to attract flies for pollination. Videos include one of a hippo spreading its droppings around to mark its territory.