The brain of human beings and other smart animals have wrinkles. It has been observed that all animals do not have a wrinkled brain. For example the brains of frogs have a smooth surface. Evolution is responsible for the ugly wrinkles that our brain possesses. The folds and creases give it a distinct appearance whether we like it or not. The brain is like a modular kitchen. In a kitchen we need to keep so many different appliances, gadgets, utensils and store grocery items. All of us are not lucky to have infinite kitchen space. Human innovation has helped us in making kitchens where there is plenty of storage space that folds pretty easily and leaves room for us to move around. The same logic has been applied on our brain by the nature.
