When we study the world around us we realize that it is not arandom collection of objects that have arrived at theirposition by chance. Patterns are everywhere, and it is by recognizing them that we can orientate ourselves, try to make sense of the world and predict the way that certain actions might occur. Without the ability to perceive patterns, the human race would not have been as successful in coping with a wide range of circumstances and occupying a significant proportion of the world’s climatic zones.