Seeing the variations in the barnacles helped Darwin see that one species can blend into another, there is no definite species barrier. Question 1 1. Beak of the Finch Chapter Summaries. Darwin's finches (also known as the Galápagos finches) are a group of about 15 species of passerine birds. The study tracked Darwin's finches on the Galápagos island of Daphne Major, where a member of the G. conirostris species (pictured) arrived from a distant island and mated with a resident finch of the species G. fortis.The offspring developed into a new species that the researchers call the Big Bird lineage. Working with others in your team, examine the cards of the Galapagos finches and arrange the species into groups based on their characteristics. On the Origin of Species Summary & Study Guide Description. Different finch beak shapes are evidence that all Galápagos finches shared a common ancestor a long time ago. This activity explores the concepts and research presented in the short film The Origin of Species: The Beak of the Finch, which documents the main findings from four decades of investigations on the evolution of the Galápagos finches.. On one of the islands, Daphne Major, biologists Peter and Rosemary Grant have devoted many years to studying four of these bird species. Why didDarwinbelieve we could never "watch" natural selection in action? Why are the finches onDaphneIslandsuch an ideal population to study? offsprings' beak size. Perhaps the best known of Darwin's species he collected while on the Galapagos Islands were what are now called "Darwin's Finches". Origin of Species quiz. The Origin of Species Revised March 2018 Page 1 of 5 The Origin of Species: The Beak of the Finch Film Guide Student Handout NAME_____ DATE_____ This handout supplements the short film The Origin of Species: The Beak of the Finch. Evolutionary biologists Rosemary and Peter Grant spent four decades tracking changes in body traits directly tied to survival in the famous Galápagos finches. The Origin of Species: The Beak of the Finch Name_____ Directions: Complete the activity by writing your answers on a separate sheet of paper. • How did the finch population change from before the drought to after? In reality, these birds are not really part of the finch family and are thought to probably actually be some sort of blackbird or mockingbird. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Differences in beak shapes tell us that all the finches eat the same type of food. The Origin of Species:The Beak of the Finch Student Worksheet NATURAL SELECTION ANDTHE EVOLUTION OF DARWIN’S FINCHES INTRODUCTION There are 13 different species of finch on the Gal á pagos Islands off the coast of Ecuador.