An Excerpt From The Selfish Gene, By Richard Dawkins (40th Anniversary)
40 years later, this is still one of the best descriptions of evolution and natural selection of all time. Happy Birthday to “The Selfish Gene”! If you haven’t read it yet, you owe it to yourself to read it now:

…Chemists have tried to imitate the chemical conditions of the young earth. They have put these simple substances in a flask and supplied a source of energy such as ultraviolet light or electric sparks – artificial simulation of primordial lightning. After a few weeks of this, something interesting is usually found inside the flask… Continue Reading