Fascinating stuff for those so inclined. After reading all about "Ardi" and watching documentaries on the archeological finds of early man, this added to my knowledge. The other fascinating book I read recently is "The Link" about a well preserved fossil that may be a link between primates and other mammals in early evolutionary history. As usual, there are new unanswered questions these discoveries uncover. Some questions are of the ethics of all this, in addition to scientific ones.