Neo-Darwinism is a "materialistic theory of origins" which states that "evolution is driven by random genetic mutations followed by the weeding out of unfavorable variations by natural selection." {| class="toccolours" style="margin-left: 1em; margin-right: 2em; font-size: 95%; background:#c6dbf7; max-width:75%; min-width:25em; " cellspacing="0" cellpadding="5" width= — |} {| class="toccolours" style="margin-left: 1em; margin-right: 2em; font-size: 95%; background:#c6dbf7; max-width:75%; min-width:25em; " cellspacing="0" cellpadding="5" width= —[ibid] |} |}