Did you kw that stick insects are called nymphs when they are young? Nymphs shed their skin as they grow. Learn more fascinating facts in Stick Insects, a Fascinating Insects book. Sabas que los insectos palo se llaman ninfas cuando son jvenes? Las ninfas cambian la piel cuando crecen. Aprende ms datos fascinantes en Los insectos palo, u de los libros de Insectos Fascinantes.