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chapter 22 - Mechanisms of Evolution descent with...

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1 Mechanisms of Evolution: descent with modification Chimpanzee Human Gorilla Orangutan Divergence (%) between nucleotide sequences of the Ψη -globin pseudogene between orangutan, gorilla, chimpanzee, and human (Bailey et al. 1991) Historical Context of Darwinism 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 American Revolution 1900 1850 1800 1750 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. Charles Darwin Cap. Robert Fitzroy The Voyage of HMS Beagle 1831-1836 1839 Journal of Researches. Into the Natural History and Geology of the Countries Visited During the Voyage of H.M.S. Beagle 1839-1845 Zoology of the Voyage of the HMS Beagle 1842 Geological Observations of South America 1851 Living Cirripedia & Fossil Cirripedia 1859 On the Origin of Species by Means of Natural Selection: Or, the Preservation of Favored Races in the Struggle for Life 1862 On the Various Contrivances by which British and Foreign Orchids are fertilized by Insects Darwin’s Work 1864
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