Artificial selection is the process of changing the characteristics of animals by artificial means. It was originally defined by Charles Darwin in contrast to the process of natural selection, in which the differential reproduction of organisms with certain traits is attributed to improved survival and reproductive ability in the natural habitat of the organism. For example, animal breeders are often able to change the characteristics of domestic animals by selecting for reproduction those individuals with the most desirable qualities such as speed in racehorses, milk production in cows, trail scenting in dogs. Another example is the crossing of white corn, or field corn, with yellow corn, or sweet corn and creating a new type of corn for human consumption called Peaches and Cream corn. When the husk is pulled back you can see an even mix between the white and yellow corn.