Resumen de Evolution, by chance?
Because of the overwhelming success of Charles Darwin's natural selection, biologists--certainly all evolutionary biologists--find it hard to believe that a feature of any organism can have arisen (with minor exceptions) in any other way. Natural selection favors random genetic mutations that offer an advantage, therefore many people believe that all properties of an organism are an adaptation. If one cannot find the adaptive reason for a feature of an organism, one should just assume that there was once one, or that there is one that will be revealed in the future. Here, Bonner argues that Darwin's theory of natural selection is so powerful that it is hard to believe an organism's features can arise any other way.
