More common than adaptation:-"If exaptations are pervasive, then natural selection—which few doubt is critical for the preservation and spreading of traits—may not be that important for the origin of innovations in life's history."-If exaptations are that common, it is another major blow to Darwinian theory.- http://www.the-scientist.com//?articles.view/articleNo/36508/title/Q---A--Evolution-Mak... example of pre-planning?