Coevolution is the term used to identify the process in nature in which two or more species interact so intimately that their evolutionary fitness depends on each other.
Nature abounds with numerous examples such as the milkweed, monarchs and their mimics.
In this activity, various materials are used to simulate flowering plants, nectar and nectaries, and the mouth parts of pollinating insects. The distance from the flower to the bottom of the container should be different in each container. Cut a small hole in the base of each flower. Place flowers back into containers. Shield container so that only the flower is visible.