Galicago Case Study Answers

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Darwin was a naturalist and geologist who was best known for his work on the Galapagos Islands. The Galapagos Islands are off the coast of Ecuador. When Darwin was on the islands, he noticed many finches. Also, each island had a distinct group of finches, different from the ones on the other islands based on their beaks. This is where he got his idea for natural selection. He concluded that all the finches must have originated from one species in Ecuador, and that some must have flown to the islands. Some groups might have stayed on one island, and other groups on other islands. This is where the beaks mattered for the finches. Since each island had different sources of foods, the finches had to have specific beaks in order to get the food. …show more content…

If finches had short beaks, then they would struggle to get nectar. In this case, the long beaked finches are better adapted to their environments, meaning they have higher chances of surviving and passing their genes onto their offspring. The short beaked finches would have a disadvantage, and would struggle to survive and reproduce. Over time, the finches better adapted would strive in their environments and their population would increase, while the finches with disadvantages would most likely die off. This is natural selection. Moreover, the finches that survived on each island would evolve to be better suited to their environments. Eventually, the groups of finches would separate into their own species. Darwin's idea of natural selection was that plants and animals best suited to their environments will survive to reproduce, and the weak ones will die off over

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