I see people were having fun with their typing. Me too..abcdefghijklmnopqrstuvwxyz.To answer the question: why are there so many breeds of dogs, cats, ect.? Variety. The same way with people. We all came from different parts of the earth, different people adapting to their enviroment. In nature, one can see how plants adapt and change. Some types of plants in Africa, for example on blossom during the rainy season. It's all in the heredity. Programming at conception to be adaptable to enviromental factors.