I was scouting some of my favorite haunts. I found this article on William Dembski's blog, Uncommon Descent.
The author claims Darwin plagarized the previous work of a scientist (a Creationist, of all things) who figured out what natural selection was and how it worked a couple decades before Darwin did.
Whether or not Darwin plagarized, I was fascinated to discover that the darling of evolution has it's roots in Creation science. But then so does calculus, basic astronomy, and the scientific method (to name a few).
Be forewarned, it's a brainy article.