Devolution http://en.wikipedia.org/wiki/Devolution_%28biology%29 We often assume that evolution works in a purposeful fashion view article devolved English English detail in Wikipedia Devolution English devolved Devlotuion WIKI: (Biological) Devolution Devolution English devolution Devolution reverse evolution devolution English English WIKI: (Biological) Devolution Devlotuion Devlotuion Devlotuion detail in Wikipedia devolution Devlotuion Devolution backward evolution http://en.wikipedia.org/wiki/Devolution_%28biology%29 English Dollo’s Law Devolution backward evolution