OK here are those readings I mentioned. All works are by Gould.
"Ever Since Darwin" read chapter 7 "The Child as Man's Real father"
"The Flamingo's Smile" Read the chapter called "The Cosmic Dance of Siva"
"The Panda's Thumb" Read the chapter called "Episodic evolutionary Change" and " Return of the Hopeful Monster"
Also read Darwins book, "Origin of the Species" the chapter called "Difficulties within the theory" (Or something to that effect)
These readings arent very long but they are very interesting. I seriously recommend reading them.