Suppose that two researchers studying at the galápagos islands find finches with a beak shape that has never been observed before. a random mutation in the gene encoding an important protein in the finch beak results in the unique beak shape. finches with this mutation have long, narrow beaks that allow them to pick grubs out of logs. grubs are common on this island, and no other finches can eat them, so this mutation is highly favorable. starting with a dna mutation, arrange the events to explain how the new beak shape became common in the population.