What Hypothesis Did The Grants Test? The hypothesis that the Grants have been testing is about the natural selection shaping the beaks of different bird populations. How do the Grants’ data show that genetic variation is important in the survival of a species? How do fossils demonstrate evidence of evolution quizlet? Fossils are important evidence
What Happened To The Finches With Small Beaks? Smaller finches with less-powerful beaks perished. So the birds that were the winners in the game of natural selection lived to reproduce. The big-beaked finches just happened to be the ones favored by the particular set of conditions Nature imposed that year. Why did finches change beaks?
How Did Finches Reach The Galapagos Islands? On the Galapagos Islands in the Pacific Ocean, there are a variety of different finches, which vary in the shape and size of their beaks. It is believed that a few seed-eating finches were blown from South America to the Galapagos Islands many years ago. … Their beaks