Lynn Margulis argues that natural selection cannot provide a powerful enough evolutionary force to account for the punctuated equilibrium demonstrated in the fossil record.
That seems pretty muddled. The rapid changes frequently seen in rock strata are mostly the result of invasions—and do not really have much to do with the rate of change associated with natural selection.
That seems pretty muddled. The rapid changes frequently seen in rock strata are mostly the result of invasions—and do not really have much to do with the rate of change associated with natural selection.