To make your life successful, there is gradual evolution from aquatics to plant life, plant life to insect life, insect life to reptiles, reptiles to bird's life, then beast life, then human life, then civilized life: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.