|MadSci Network: Evolution|
Your question eludes to an area of evolution that many people have difficulties with. When we observe the high degree of complexity in living organisms it is difficult to imagine that this complexity could arise from random mutations. In fact, creationists use this point to argue against evolution. But what we must understand is that evolution occurs with gradual cumulative changes happening over a very long time line. Evolution has had billions of years to occur, once we consider the enormity of this time line the complexities of today's organisms seem plausible in evolutionary terms. The Blind Watchmaker written by Richard Dawkins is an excellent book which illustrates how complexity can be explained by evolutionary principals. The url that I have linked provides chapter reviews of this book and has links to other evolution web pages which you may find interesting and helpful. Chris Yost email@example.com
Try the links in the MadSci Library for more information on Evolution.