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Journal #1: Do the inquiry activity pg. 368 *procedure 1 & 2 *make a data table and graph Vocabulary: Evolution Theory Fossil Objective #1: Describe the pattern Darwin observed among the organisms of the Galapagos Islands. Chapter 15 Darwin’s Theory of Evolution 15-1 The Puzzle of Life’s Diversity *Interactive pgs. 367-372 Why are living things so different? The answer is a collection of facts, observations, and hypothesis known as evolutionary theory. Evolution Change over time Modern organisms descended from ancient organisms Evolution is a Theory A well supported explanation Charles Darwin & the Voyage of the Beagle Charles Darwin English Naturalist Observations and publications led to the development of Evolutionary theory H.M.S. Beagle A ship that sailed around the world Darwin was on board and collected plant and animal specimens at every stop. Darwin’s Observations Patterns of Diversity Plants and animals well suited to environments Very different looking and behaving animals Living organisms and Fossils Preserved remains of ancient organisms Resembled some living and some nonliving animals The Galapagos Islands Group of Islands 1000km west of South America Islands close together but with different climates Animals Tortoises had different shells and neck lengths depending on the island they lived on Birds with different beak shapes Pinta Pinta Island Tower Marchena Intermediate shell Fernandina James Santa Cruz Isabela Santa Fe Hood Island Floreana Isabela Island Dome-shaped shell Hood Saddle-backed shell The Journey Home Had time to study his notes and specimens Noticed many plants and animals have very different characteristics depending on which island they were found Hypothesis Developed: Did these separate species evolve from a common ancestor?