The hypothesis of punctuated equilibria.
a model of evolution in which short periods of drastic change in species are separated by long periods of little or no change
Punctuated equilibrium.
Evolution
Evolution.
Evolution of man.
Evolution
Evolution is the change in species over long periods of time.
Equilibrium
punctuated equibria
punctuated equilibria accounts for the gaps in the fossil record. Species evolve quickly during relatively short periods. Tiny changes in a species gradually add up to major changes over very long periods of time. Gradualism proposes that evolution occurs slowly but steadily. These periods of rapid change are separated by long periods of little or no change.