But guppies with less color have difficulty mating, which does them no good, but the less distinctive they are the longer they have to live. Guppies emerged in safer waters with larger patches of color and tried to differentiate themselves from the gravel, and guppies in dangerous waters became smaller and showed fewer colors and blended in with the gravel.Chapter 7The consequences of El Niño on Darwin's finches were the result of more than two thousand finches. Additionally, the humidity meant a game changer for Tribulus and finches that ate small-seeded crops. Biologists have reconciled the apparent paradox of rapid evolution by creating a universal unit, called Darwin. The results of natural selection in Darwin's finches and British Columbia sparrows change my view of species because every living animal changes to survive the conditions they enter the world. normal lifestyle.Chapter 8Hybrid finches before the 1983 El Niño, two different species did not mate with each other but during the baby, a scandens mated with a fortis and produced four young.Chapter