Evolution at Two Levels: On Genes and Form

PLoS Biology: Evolution at Two Levels: On Genes and Form: "In their classic paper "Evolution at Two Levels in Humans and Chimpanzees," published exactly 30 years ago, Mary-Claire King and Allan Wilson described the great similarity between many proteins of chimpanzees and humans [1]. They concluded that the small degree of molecular divergence observed could not account for the anatomical or behavioral differences between chimps and humans. Rather, they proposed that evolutionary changes in anatomy and way of life are more often based on changes in the mechanisms controlling the expression of genes than on sequence changes in proteins."