3_Darwin - The Darwinian Revolution 22.1-22.3 1 Top 5 Myths...

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1 The Darwinian Revolution 22.1-22.3
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2 Top 5 Myths about Darwin & Evolution
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3 Myth 1 Darwin joined the Voyage of the Beagle as an unpaid naturalist Darwin at 22, about the time the voyage began
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4 Robert FitzRoy, Captain of the H.M.S. Beagle Darwin was instead the “gentleman companion” to Captain Fitzroy
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NORTH AMERICA SOUTH AMERICA AFRICA EUROPE AUSTRALIA PACIFIC OCEAN ATLANTIC OCEAN England Cape of Good Hope Cape Horn Tierra del Fuego Galápagos Islands Darwin in 1840, after his return HMS Beagle in port Equator Tasmania New Zealand Andes So what did Darwin do during the voyage?
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6 Darwin’s Voyage on the Beagle Visited S. America (inc. Galapagos), Africa, Tazmania and New Zealand 3 years 3 mo. on land, 18 mo at sea (1831-1836) Observed marine fossils high in the Andes, an earthquake that caused coastal uplift, scores of endemic species in the Galapagos Sent thousands of samples home for science and for profit Kept a detailed now-famous journal
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7 Myth 2 Darwin was the first to propose that life on this planet evolved
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Linnaeus (classification) Hutton (gradual geologic change) Lamarck (species can change) Malthus (population limits) Cuvier (fossils, extinction) Lyell (modern geology) Darwin (evolution, natural selection) Mendel (inheritance) Wallace (evolution, natural selection) French Revolution U.S. Civil War 1900 1850 1800 1750 American Revolution 1795 Hutton proposes his theory of gradualism. 1798 Malthus publishes “Essay on the Principle of Population.” 1809 Lamarck publishes his theory of evolution. 1830 Lyell publishes Principles of Geology . 1831–1936 Darwin travels around the world on HMS Beagle . 1837 Darwin begins his notebooks on the origin of species. 1844 Darwin writes his essay on the origin of species. 1858 Wallace sends his theory to Darwin. 1859 The Origin of Species is published. 1865 Mendel publishes inheritance papers.
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9 Several ancient Greeks had evolutionary ideas Empedocles believed plants came first, then animals Developed a theory of struggle among animals that foreshadows natural selection Empedocles ~490-430 BC
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10 Lucretius also developed a “Survival of the Fittest” idea “I cannot understand why you scientific people make such a fuss about Darwin. Why, it's all in Lucretius!” - poet Matthew Arnold in 1871 Lucretius, 95-54 BC
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11 Aristotle, however, believed life forms were fixed Noted scale naturae However, he felt that each life form was perfect and unchangeable Aristotle 384-322 BC
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12 Linnaeus also believed species were unchangeable Unitas in omni specie ordinem ducit
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