BiologyWise
Biology Wise: Digestive System of an Earthworm
Provides information about the anatomy of the earthworm's digestive system and why the earthworm plays such an important role in soil health.
Other
Coelacanth: The Fish Out of Water
A captivating site that explores all facets of this "fossil fish". Recent history, conservation, and biological behavior are only a few of the areas explored.