Objective To predict what the data should look like when natural selection is operating in natural populations, and then to look for these patterns in real data Definitions Evolution: changes in allele, genotype, or phenotype frequencies over time Natural selection: differential survival and reproduction in nature that favors individuals that are better adapted to their environment; elimination of less fit organisms Original population Phenotypes (fur color) Original population popuilation Evolved (b) Disruptive selection c) Stabilizing selection Note: white arrows show traits along the x-axis that are selected against in the original population, which drive the changes in the evolved population. Question: do these graphs show natural selection, evolution, or both? Using the definitions of these two processes, explain your answer.