For many students, preconceived notions about Darwin are among the most significant obstacles in learning about the theory of evolution by natural selection. I present an activity designed to eliminate this obstacle and encourage empathizing with Darwin, utilizing the history-of-science approach. Through the activity, students' negative thoughts…

Several examples of coevolution which can be used in biology classes are presented. Discussed are evolutionary processes in general, giant cacti, and reptile and cacti association. The effects of human interference are briefly described. (CW)

Biodiversity is the extraordinary variety of life in this planet. In order to be fully appreciated, biodiversity needs to be experienced firsthand, or "experientially." Thus, the standard classroom lecture format is not the ideal situation for teaching biodiversity and evolutionary concepts, in that student interest and understanding are…