All of us at Education Planet send our deepest sympathies to the victims of September 11th's tragic events. Resources for Talking with Children about Terrorism. Every month hundreds of thousands of teachers, students and parents visit Education Planet to find educator-approved resources and services. A directory and search engine of insect-related resources on the Internet. The cockroach has changed very little in general structure since they first appeared on Earth more than 250 million years ago.
Cockroaches are usually flat, with a smooth, waxy tough skin.
J.G. Kunkel Bibliographic Database Stay, and S. S. Tobe. This NebGuide provides information on common cockroaches found in Nebraska, and management strategies, including prevention, sanitation, trapping and use of insecticides. Koehler et al. Fantastic resources for teachers, students, and parents. Inc. All rights reserved.