Education Preschool 3 yearolds group with female teacher interested in class pets, Madagascar hissing cockroaches (Gromphadorhina portentosa), also known as the hissing cockroach or simply hisser, is one of the largest species of cockroach, reaching 2 to 3 inches (5.1–7.6 cm) at maturity. In captivity, these insects can live 5 years. They feed primarily on vegetable material.
Keywords: