Genetic evidence supports which of the following explanations for the presence of 13 different finch species on the Galapagos islands? Each of the 13 species was founded by an independent migration of a different species from the mainland to the islands. Many years ago, more than 13 different species of birds migrated to the islands. The current 13 finch species are the only ones that survived. It\'s not clear based on the DNA evidence whether the 13 species arose from a single migration of one species or multiple migrations of several species from the mainland to the islands. Many years ago, a small population of single finch species migrated to the islands and evolved into the current 13 species. Solution Answer will be 4th option that is \"many year ago, a small population of single finch species migrwted yo the islands snd evolver into current 13 species. The evolution of finch was related to feeding strategies. The 13 diatinct species were descendants of a common ancestor and each of their species eats different type of food. for example, Cactus finch has a long beak that reaches into blossoms, the gtound finch has a short beak adapted for eating seeds burried under the soil and tree finch has a parrot shaped beak suited for stripping bark to find insects. The beak size is clearly related to feeding strategies, it is also related to reproduction. Female finch tends to mate with males that have the same beak size..