If the goal of evolutionary biology is to understand the history of life, rather than simply document experimental analysis of evolution, studies from paleontology, phylogenetics, developmental biology, and other fields demand the deeper view provided by macroevolution.INTRODUCTIONTop of pageAbstractINTRODUCTIONWHAT IS MACROEVOLUTION?SPECIATIONTRENDS: DIFFERENTIAL SUCCESS WITHIN LINEAGES AND CLADE