An exhibit in the Oak Park Conservatory through August 28 invites young Oak Parkers to put their detective skills to use to discover if it is possible to know what an animal eats just by looking at its teeth. Organized by the Purdue Agriculture Exhibit Design Center, the exhibit, designed to appeal to children of kindergarten age through fourth grade, teaches that mammals are carnivores, herbivores or omnivores and that each has different types of teeth and feeding habits. Among the exhibit’s features are animal skulls, including a tiny weasel and a polar bear, a touch-screen game and a mirror so tooth sleuths can look at their own teeth to determine their eating category. The Oak Park Conservatory, 615 Garfield St., is open from 10 a.m. to 4 p.m., Tuesday – Sunday. Admission is free, but a $2 donation is appreciated. For more information call 708.725.2400 or visit www.oakparkconservatory.org.