Swallowtail butterfly Swallowtail butterfly Swallowtail butterflies are large, colorful butterflies in the family Papilionidae, and include over 550 species. Though the majority are tropical, members of the family inhabit every continent except Antarctica. The family includes the largest butterflies in the world, the birdwing butterflies of the genus "Ornithoptera". Swallowtails have a number of distinctive features; for example, the papilionid caterpillar bears a repugnatorial organ called the osmeterium on its prothorax. The osmeterium normally remains hidden, but when threatened, the larva turns it outward through a transverse dorsal groove by inflating it with fluid. The forked appearance of the swallowtails' hindwings, which
C.D. Peacock C.D. Peacock C.D. Peacock, originally established as The House of Peacock, is a Chicago, Illinois-based retail jewelry store founded in 1837 by Elijah Peacock. The company is Chicago's oldest existing retailer. The company survived the Great Chicago Fire, despite its location in the middle of the city, as all of its merchandise was kept in a fireproof safe. In 1889, Charles Daniel Peacock assumed control of the business and changed the name to the current C.D. Peacock. They issued their first retail catalog in 1893, which coincided with the World's Columbian Exposition. Later, company president Walter C. Peacock became an