Well, take a self replicating cell, let it divide a few million times and group together with other cells to form clusters of cells that eventually develop to preform specialized tasks; eventually into multicellular organisms, which then in turn become different species of fish, bugs, frogs, and all those other 'critters'...... It may be a long shot but have you read "On the origins of species" by Charles Darwin? It is a long and somewhat boring book, but it does detail some fine points of evolution. If this is not adequate, try
http://www.talkorigins.org. They have an excellent library of resources for Creationists and Evolutionists alike!
I must be off, it seems I have classes tomorrow... Hope this helped ~Kv
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