Answer:
During periods of evolution, culture, opinions, beliefs, and desires change, so to go along with that, the appearance of things must change as well. A really wonderful example is women's fashion. In the 1950's, the female fashion industry profited from short, flowy, patterned dresses. As time went on and humans evolved, fashion changed and became brighter, showier, and louder in the 80's. Evolution changes the appearance of things to make them more desirable as humans' tastes evolve.
hope this helped, have a lovely day!