Shown at 1/4 size. Click for full size.

Study the external and internal anatomy of the earthworm from a general "overview" right down to microscopic detail of each system. Watch videos of difficult to see concepts like the movement of the lateral setae; the peristaltic movement of the worm, or the surprisinglycommon invasion of a circulatory or excretory parasite! Participate in an interactive dissection. The Earthworm includes over 90 images, slides, diagrams and more than 500 questions. Full screen images. Complete interactive dissection and testing.