Retired from teaching at Delta College summer/2000. Eldon has over 30 years teaching experience in biology, zoology, and environmental science. Eldon has been a Fullbright Exchange Teacher in Australia and Scotland, received the Bergstein Award for Teaching Excellence at Delta College, and participated in an Earthwatch Research Program in Costa Rica. In addition to the environmental science text, Eldon is co-author of the very successful CONCEPTS IN BIOLOGY, general biology text with WCB.